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{{short description|American Thoroughbred racehorse}}
{{About|the horse named Man o' War|other uses|Man o' war (disambiguation){{!}}Man o' war}}
{{good article}}
{{Infobox racehorse
| horsename=Man o' War 
| image = [[File:Manowar1920.jpg|250px]]
| caption = Man o' War, 1920
| sire = [[Fair Play (horse)|Fair Play]]
| grandsire = [[Hastings (horse)|Hastings]]
| dam = [[Mahubah]]
| damsire = [[Rock Sand (horse)|Rock Sand]]
| sex = [[Stallion (horse)|Stallion]]
| foaled = March 29, 1917<br />Nursery Stud,<br />[[Lexington, Kentucky]], U.S.
| death_date = {{death date and age|1947|11|1|1917|3|29}}
| country = United States
| color = [[Chestnut (coat)|Chestnut]]
| breeder = [[August Belmont Jr.]]
| owner = [[Samuel D. Riddle]]
| trainer = [[Louis Feustel]]
| record = 21: 20–1–0
| earnings= $249,465
| race = [[Keene Memorial Stakes]] (1919)<br />[[Tremont Stakes]] (1919)<br />[[United States Hotel Stakes]] (1919)<br />[[Youthful Stakes]] (1919)<br />[[Grand Union Hotel Stakes]] (1919)<br />[[Hopeful Stakes (United States)|Hopeful Stakes]] (1919)<br />[[Hudson Stakes]] (1919)<br />[[Belmont Futurity Stakes|Futurity Stakes]] (1919)<br />[[Withers Stakes]] (1920)<br />[[Stuyvesant Handicap]] (1920)<br />[[Dwyer Stakes]] (1920)<br />[[Kenner Stakes|Miller Stakes]] (1920)<br />[[Travers Stakes]] (1920)<br />[[Lawrence Realization Stakes]] (1920)<br />[[Jockey Club Gold Cup]] (1920)<br />[[Potomac Handicap]] (1920)<br />[[Kenilworth Park Gold Cup]] (1920)
<p>
'''[[United States Triple Crown of Thoroughbred Racing|Triple Crown]] wins:'''<br />'''[[Preakness Stakes]]''' (1920)<br />'''[[Belmont Stakes]]''' (1920)</p>
| awards= [[American Champion Two-Year-Old Colt]] (1919)<br />[[American Champion Three-Year-Old Male Horse]] (1920)<br />[[American Horse of the Year]] (1920)<br />[[Leading sire in North America]] (1926)
| honors = [[National Museum of Racing and Hall of Fame|U.S. Racing Hall of Fame]] (1957)<br />[[Canadian Horse Racing Hall of Fame]] (2020)<br/>[[Blood-Horse magazine List of the Top 100 Racehorses of the 20th Century|#1 - Top 100 U.S. Racehorses of the 20th Century]]<ref name="secretariat">{{cite news | url=http://www.nbcbayarea.com/news/sports/Horse-of-the-Century-Man-o-War-vs-Secretariat-201932431.html | work=nbcbayarea.com | first=Scott | last=Ross | title=Horse of the Century: Man o' War vs. Secretariat | date=April 18, 2013 | archive-date=May 9, 2015 | access-date=July 4, 2014 | archive-url=https://web.archive.org/web/20150509140515/http://www.nbcbayarea.com/news/sports/Horse-of-the-Century-Man-o-War-vs-Secretariat-201932431.html | url-status=live }}</ref><br />[[Statue|Life-size statue]] at [[Kentucky Horse Park]]<br />[[Man O' War Stakes|Man o' War Stakes]] at [[Belmont Park]]<br />[[Man o' War Boulevard]] in [[Lexington, Kentucky]]
}}
'''Man o' War''' (March 29, 1917 – November 1, 1947) was an American [[Thoroughbred]] [[horse racing|racehorse]] who is widely regarded as one of the greatest racehorses of all time. Several sports publications, including ''[[The Blood-Horse]]'', ''[[Sports Illustrated]]'', and the [[Associated Press]], voted Man o' War as the best American racehorse of the 20th century. During his racing career, just after [[World War I]], Man o' War won 20 of 21 races and $249,465 ({{Inflation|US|249465|1920|r=-3|fmt=eq}}) in purses. He was the unofficial 1920 American horse of the year and was honored with [[Babe Ruth]] as the outstanding athlete of the year by ''[[The New York Times]]''. He was inducted into the [[National Museum of Racing and Hall of Fame]] in 1957. On March 29, 2017, the museum opened a special exhibit in his honor, "Man o' War at 100".

In 1919, Man o' War won 9 of 10 starts, including the [[Hopeful Stakes]] and [[Belmont Futurity]], then the most important races for two-year-old horses in the United States. His only loss came at [[Saratoga Race Course]], later nicknamed the Graveyard of Champions, where he lost by a neck to a colt fittingly named [[Upset (horse)|Upset]].

Man o' War was not entered in the [[1920 Kentucky Derby]] because his owner, [[Samuel Riddle]], did not believe in racing at the distance of {{convert|10|furlong|m|spell=in}} (one mile and a quarter) so early in a young horse's career. Instead, Man o' War made his three-year-old debut in the [[Preakness Stakes]] where he defeated Upset by {{frac|1|1|2}} lengths. Man o' War later won the [[Belmont Stakes]] by 20 lengths while setting a world record. Throughout the summer and fall, he continued to dominate his fellow three-year-olds, setting multiple records while conceding large amounts of weight to his rivals. The only time he faced older horses was in the final race of his career in a match race against [[Sir Barton]], who had won what would later be known as the [[Triple Crown of Thoroughbred Racing (United States)|American Triple Crown]] in 1919. Man o' War won easily by seven lengths in the first horserace to be filmed in its entirety.

Riddle originally intended to race Man o' War in 1921 but decided against it because Man o' War would have been assigned record weights in the [[Handicap (horse racing)|handicap format]] used in almost all races for older horses at the time. Instead, Man o' War was retired to stud, where he became a [[Leading sire in North America|leading sire]] whose multiple champions included Triple Crown winner [[War Admiral]]. He was the grandsire of [[Seabiscuit]] and his sire line continues today through horses such as [[In Reality]], [[Tiznow]], [[Da' Tara]] and [[Tourist (horse)|Tourist]]. Also successful as a [[broodmare]] sire, Man o' War is found in almost all modern American pedigrees.

==Background==
Man o' War was a [[Chestnut (horse coat)|chestnut]] horse with a [[Horse markings#Facial markings|white star and stripe]] on his forehead. He was foaled at [[Nursery Stud]] near [[Lexington, Kentucky]].<ref>{{cite web|author1=Tim Talbott|title=Man-O-War|url=http://explorekyhistory.ky.gov/items/show/325?tour=19&index=13|website=explorekyhistory,ky.gov|access-date=September 6, 2015|archive-date=September 29, 2015|archive-url=https://web.archive.org/web/20150929070010/http://explorekyhistory.ky.gov/items/show/325?tour=19&index=13|url-status=live}}</ref> He was bred by [[August Belmont Jr.]], whose father's accomplishments were recognized through the naming of the Belmont Stakes in 1867. Belmont Jr. was an equally notable horseman who served as the chairman of [[The Jockey Club]] from 1895 until his death in 1924. [[Belmont Park]] was named in the family's honor when it opened in 1905.<ref>{{cite web|title=August Belmont II|url=https://www.racingmuseum.org/hall-of-fame/august-belmont-ii|website=www.racingmuseum.org|access-date=March 21, 2017|archive-date=March 21, 2017|archive-url=https://web.archive.org/web/20170321170152/https://www.racingmuseum.org/hall-of-fame/august-belmont-ii|url-status=live}}</ref>

[[File:Man o' War with trainer Joseph Bryan Martin.jpeg|thumb|left|Man o' War at Nursery Stud]]
Man o' War was sired by [[Fair Play (horse)|Fair Play]], a multiple stakes winner who finished second in the 1908 Belmont Stakes to the undefeated [[Colin (horse)|Colin]].<ref name=FairPlay>{{cite web|last1=Hunter|first1=Avalyn|title=Fair Play (horse)|url=http://www.americanclassicpedigrees.com/fair-play.html|website=American Classic Pedigrees|access-date=March 21, 2017|archive-date=July 24, 2016|archive-url=https://web.archive.org/web/20160724064731/http://www.americanclassicpedigrees.com/fair-play.html|url-status=live}}</ref> Man o' War was the second foal out of [[Mahubah]], a lightly raced mare by [[Triple Crown of Thoroughbred Racing#English Triple Crowns|English Triple Crown Champion]] [[Rock Sand (horse)|Rock Sand]].<ref name="Mahubah">{{cite web|last1=Hunter|first1=Avalyn|title=Mahubah (horse)|url=http://www.americanclassicpedigrees.com/mahubah.html|website=American Classic Pedigrees|access-date=March 21, 2017|archive-date=May 14, 2018|archive-url=https://web.archive.org/web/20180514112915/http://www.americanclassicpedigrees.com/mahubah.html|url-status=live}}</ref> Not long after the [[Colt (horse)|colt]] was foaled on March 29, 1917, Belmont Jr. joined the [[United States Army]] at age 65 to serve in [[France]] during [[World War I]]. While he was overseas, his wife named the foal "Man o' War" in honor of her husband.<ref>{{Harvnb|Ours|2006|pp=18, 286}}.</ref> Originally, the Belmonts intended to race Man o' War themselves. However, in the summer of 1918 with the ongoing war effort, they decided to liquidate their racing stable. At the [[Saratoga Springs, New York|Saratoga]] yearling sale, Man o' War was sold at a final bid of $5,000 ({{Inflation|US|5000|1918|r=-3|fmt=eq}}) to [[Samuel D. Riddle]], who brought him to his [[Glen Riddle Farm]] near [[Berlin, Maryland]]. The underbidder at the auction was [[Robert Livingston Gerry, Sr.|Robert L. Gerry, Sr.]], who is reported to have said to his wife, "Forty-five hundred is enough to spend for any yearling."<ref>{{cite web|last1=Maguire|first1=John|last2=Cassidy|first2=John|title=Railbirds Take a Back Seat to the Real Gamblers at Saratoga; Prices Expected to Soar|url=https://timesmachine.nytimes.com/timesmachine/1980/07/27/140304322.html?pageNumber=256|website=The New York Times (TimesMachine - subscription may be required)|access-date=March 27, 2017|language=en|date=July 27, 1980}}</ref> Two years later in 1920, Riddle declined an offer of $400,000 for the horse.<ref name="400K">{{cite web|title=REFUSES $400,000 FOR MAN O' WAR;|url=https://www.nytimes.com/1920/10/15/archives/refuses-400000-for-man-o-war-riddle-declines-huge-sum-for.html|website=The New York Times|access-date=March 28, 2017|date=October 15, 1920|archive-date=July 25, 2018|archive-url=https://web.archive.org/web/20180725215326/https://www.nytimes.com/1920/10/15/archives/refuses-400000-for-man-o-war-riddle-declines-huge-sum-for.html|url-status=live}}</ref>

At maturity, Man o' War stood {{hands|16.2 + 1/2}}, with prominent [[withers]] and a high [[Equine conformation#Croup and .22hip.22|croup]], but was sometimes faulted for a dipped back that grew more pronounced with age. He had virtually flawless legs and solid bone, traits he passed on to his offspring. He had a slightly Roman nose and notably high head carriage.<ref name=ACP /> His nickname was "Big Red", though his coat had tinges of yellow and gold. An energetic, spirited horse, he is often pictured standing very still and gazing off into the distance,<ref name="Livingston2017">{{cite web|last1=Livingston|first1=Barbara|title=Chasing Man o' War's ghost|url=http://www.drf.com/manowar|website=Daily Racing Form|access-date=March 25, 2017|language=en|date=March 24, 2017|archive-date=March 25, 2017|archive-url=https://web.archive.org/web/20170325201440/http://www.drf.com/manowar|url-status=live}}</ref> described as the "look of eagles".<ref>{{cite web|title=1936 Conformation, Man o' War · Man o' War: In Others' Words · The Keeneland Library|url=http://keenelandlibrary.omeka.net/exhibits/show/manowar/retrospective/1936conformationmanowar|website=keenelandlibrary.omeka.net|access-date=October 1, 2017|archive-date=July 14, 2017|archive-url=https://web.archive.org/web/20170714134419/http://keenelandlibrary.omeka.net/exhibits/show/manowar/retrospective/1936conformationmanowar|url-status=live}}</ref> His stride was measured at 28 feet and, to this day, is believed to still be the longest of all time.<ref name=HOF />

==Racing career==

[[File:Owner Samuel D Riddle.svg|thumb|upright|Silks of Samuel Riddle]]Man o' War was the [[Glossary of North American horse racing#O|odds-on]] favorite in every start of his career and justified that faith even in his sole defeat. He typically won in front-running fashion and was only closely pushed in two of his starts. He won the Belmont Stakes by twenty lengths and the [[Lawrence Realization Stakes|Lawrence Realization]] by a hundred lengths. He set record times in both of those races plus many more at distances ranging from {{convert|6|to(-)|13|furlong|m}}. In many of his starts, he won under heavy restraint and often conceded his rivals large amounts of weight.<ref name=Livingston2017 /><ref name=ACP /> He retired as the then-leading money-earner in American history.<ref name="Kenilworth">{{cite web|title=MAN O' WAR VICTOR OVER SIR BARTON BY SEVEN LENGTHS; Matchless 3-Year-Old Scores Easy Triumph in $75,000 Match Race|url=https://www.nytimes.com/1920/10/13/archives/man-o-war-victor-over-sir-barton-by-seven-lengths-matchless.html|website=The New York Times|access-date=March 28, 2017|date=October 13, 1920|archive-date=April 25, 2024|archive-url=https://web.archive.org/web/20240425005852/https://www.nytimes.com/1920/10/13/archives/man-o-war-victor-over-sir-barton-by-seven-lengths-matchless.html|url-status=live}}</ref>

Developing this talent was not easy for trainer [[Louis Feustel]] due to Man o' War's occasionally wild temperament. In his early days, Man o' War would routinely dump his exercise riders, once getting free for over 15 minutes after a morning workout. "He fought like a tiger," Riddle later recalled. "He screamed with rage and fought us so hard that it took several days before he could be handled with safety." Feustel brought the colt along slowly and gradually settled him into a regular routine.<ref name=HOF /> Man o' War developed a strong bond with his groom Frank Loftus, who taught the horse to fetch and to carry his hat. Oranges were Man o' War's favorite treat.<ref name="Karon">{{cite web|last1=Karon|first1=Frances J.|title=Man o' War: the first 100 years|url=https://issuu.com/anderson-co/docs/north_american_trainer_issue_43_int/12|website=issuu|date=13 February 2017|publisher=North American Trainer - February to April 2017 - issue 43|access-date=March 29, 2017|archive-date=30 March 2017|archive-url=https://web.archive.org/web/20170330001333/https://issuu.com/anderson-co/docs/north_american_trainer_issue_43_int/12|url-status=live}}</ref>

===1919: Two-year-old season===
Man o' War made his debut at Belmont Park on June 6, 1919, in a [[maiden race]] over {{convert|5|furlong|m|spell=in}}. At the time, horses raced clockwise at Belmont Park rather than counter-clockwise like all the other American tracks of the day, so horses had to learn to race in both directions. This practice ended in 1922 after Man o' War retired.<ref>{{cite news |title=Why is the horse running in the opposite direction? 'Hey, why not,' asks Toronto's Woodbine Racetrack |url=https://nationalpost.com/news/canada/why-is-the-horse-running-in-the-opposite-direction-hey-why-not-asks-torontos-woodbine-racetrack |website=National Post |access-date=22 July 2018 |date=7 June 2016|last1=Brean |first1=Joseph }}</ref> He won his first race by six lengths, then three days later was entered in the [[Keene Memorial Stakes]] at a distance of {{convert|5+1/2|furlong|m}} on a muddy track at Belmont Park. At this point in his career, Man o' War had not yet learned how to start quickly but soon settled into fourth place. With an eighth of a mile remaining, jockey [[Johnny Loftus]] urged him to run and the horse responded by pulling away from his rivals to win by three lengths.<ref name=Keene>{{cite news|title=MAN O'WAR SAILS IN AN EASY WINNER; Takes Keene Memorial by Three Lengths|url=https://www.nytimes.com/1919/06/10/archives/man-owar-sails-in-an-easy-winner-takes-keene-memorial-by-three.html|website=The New York Times|date=10 June 1919|access-date=March 27, 2017|language=en|archive-date=22 July 2018|archive-url=https://web.archive.org/web/20180722213620/https://www.nytimes.com/1919/06/10/archives/man-owar-sails-in-an-easy-winner-takes-keene-memorial-by-three.html|url-status=live}}</ref> Twelve days later, Man o' War followed up with another win in the [[Youthful Stakes]] at [[Jamaica Race Course]]. Two days after that, he swept to victory in the [[Hudson Stakes]] at [[Aqueduct Racetrack|Aqueduct]] to record his fourth win in 18 days. Less than two weeks later, he returned to win the [[Tremont Stakes]] at Aqueduct on July 5.<ref name=Upset>{{cite web|last1=Johnson|first1=J. Keeler|title=Saratoga's Upset of the Century|url=https://www.americasbestracing.net/the-sport/2016-saratogas-upset-the-century|website=www.americasbestracing.net|access-date=July 21, 2016|archive-date=August 17, 2016|archive-url=https://web.archive.org/web/20160817192338/https://www.americasbestracing.net/the-sport/2016-saratogas-upset-the-century|url-status=live}}</ref>

He was then shipped upstate for the summer meet at [[Saratoga Race Course]], where the competition would be much fiercer. He made his first appearance there in the [[United States Hotel Stakes]] on August 2. Despite getting a bad start and carrying 130 pounds, Man o' War won by two lengths in his first meeting with a well-regarded colt named [[Upset (horse)|Upset]].<ref name="USHotel">{{cite web|title=MAN O' WAR HEADS FINE FIELD AT SPA|url=https://www.nytimes.com/1919/08/03/archives/man-o-war-heads-fine-field-at-spa-twoyearold-scores-impressive.html|website=The New York Times|access-date=March 27, 2017|date=August 3, 1919|archive-date=July 25, 2018|archive-url=https://web.archive.org/web/20180725215133/https://www.nytimes.com/1919/08/03/archives/man-o-war-heads-fine-field-at-spa-twoyearold-scores-impressive.html|url-status=live}}</ref>
[[File:Man o' War in the Sanford.jpg|thumb|Man o' War suffers his sole defeat to Upset in the Sanford Stakes]]
His next start was the [[Sanford Stakes|Sanford Memorial Stakes]] on August 13, where he went off as the odds-on favorite with Upset as the third betting choice. This race is notorious in racing history as Man o' War's only defeat, playing a part in developing Saratoga's reputation as the "Graveyard of Champions".<ref>{{cite web|last1=Pedulla|first1=Tom|title=Exaggerator to test Saratoga's reputation as the Graveyard of Champions|url=http://www.latimes.com/sports/sportsnow/la-sp-travers-stakes-20160826-snap-story.html|website=Los Angeles Times|access-date=April 22, 2017|date=August 26, 2016|archive-date=April 22, 2017|archive-url=https://web.archive.org/web/20170422135132/http://www.latimes.com/sports/sportsnow/la-sp-travers-stakes-20160826-snap-story.html|url-status=live}}</ref> In the early 1900s, there were no starting gates. Horses circled around and then lined up behind a piece of webbing known as the barrier and were sent away when it was raised.<ref>{{Harvnb|Ours|2006|p=40}}.</ref> In the Sanford, most sources state that Man o' War was still circling with his back to the starting line when the barrier was raised (though some accounts say he was turned only slightly sideways).<ref>{{Harvnb|Ours|2006|p=102}}.</ref> What is undisputed is that Man o' War had a terrible start, which ''[[The New York Times]]'' attributed to the absence of the regular starting official. The start was delayed for several minutes as other colts repeatedly broke through the barrier and the starter finally released the field when only the horses near the rail were ready. As a result, Man o' War was far behind the other starters. Loftus then put him in a bad position, getting boxed in by other horses, then checked by tiring horses. Despite this, Man o' War came close to winning, losing by about a neck{{efn|The chart in ''The New York Times'' shows the margin as a neck while the ''Daily Racing Form'' shows the margin as a half-length.}} while conceding 15 pounds to Upset.<ref name=Upset /><ref name=Sanford>{{cite web|title=SANFORD MEMORIAL IS WON BY UPSET; Man o'War Furnishes the Real Thrill of Race|url=https://query.nytimes.com/gst/abstract.html?res=9F07E7D81338EE32A25757C1A96E9C946896D6CF&legacy=true|website=The New York Times|access-date=March 27, 2017|date=August 14, 1919|archive-date=March 28, 2017|archive-url=https://web.archive.org/web/20170328105736/http://query.nytimes.com/gst/abstract.html?res=9F07E7D81338EE32A25757C1A96E9C946896D6CF&legacy=true|url-status=live}}</ref><ref name=DRFUpset />

It is sometimes erroneously thought that Upset's unexpected win popularized a new phrase in sports (meaning an underdog beating the favorite) – in fact, the term "upset" had been in use to describe such a situation for decades. The two horses faced off five times during their racing careers, with Man o' War beating Upset four times.<ref>{{cite web|title=The Myth about Upset, 1919|url=http://colinsghost.org/2009/08/myth-about-upset-1919.html|website=colinsghost.org|access-date=May 1, 2017|archive-date=July 6, 2017|archive-url=https://web.archive.org/web/20170706104249/http://colinsghost.org/2009/08/myth-about-upset-1919.html|url-status=live}}</ref><ref name="DRFUpset">{{cite web|title=Through the DRF archives: Upset stuns Man o' War in Sanford at Saratoga {{!}} Daily Racing Form|url=http://www.drf.com/archive/upset|website=www.drf.com|access-date=October 1, 2017|language=en|archive-date=October 1, 2017|archive-url=https://web.archive.org/web/20171001122927/http://www.drf.com/archive/upset|url-status=live}}</ref>

The loss only enhanced Man o' War's reputation. J.L. Dempsey of ''The Daily Racing Form'' wrote, "Without attempting to detract from the merits of [Upset's] performance, Man o' War proved himself in the running unquestionably the best. It was Upset's advantage at the start, coupled with 15 pounds weight concession, a perfect ride he received from Knapp and his success in saving ground on the stretch turn that brought his triumph over Man o' War. Had the race been a sixteenth farther the finish would have been reversed."<ref name=Upset />

Man o' War gained his revenge with a victory in the [[Grand Union Hotel Stakes]] on August 23, beating Upset by two lengths with Blazes in third. After the race, Loftus stated that Man o' War was the best horse he had ever ridden and that his ride had been responsible for the loss in the Sanford.<ref>{{cite web|title=MAN O'WAR TAKES GRAND UNION HOTEL STAKES, WITH UPSET SECOND; MAN O' WAR IS KING OF TWO-YEAR-OLDS|url=https://www.nytimes.com/1919/08/24/archives/man-owar-takes-grand-union-hotel-stakes-with-upset-second-man-o-war.html|website=The New York Times|access-date=March 25, 2017|date=August 24, 1919|archive-date=July 25, 2018|archive-url=https://web.archive.org/web/20180725214936/https://www.nytimes.com/1919/08/24/archives/man-owar-takes-grand-union-hotel-stakes-with-upset-second-man-o-war.html|url-status=live}}</ref> While carrying 130 pounds, Man o' War tied the stakes record{{efn|A stakes record is the fastest time for a particular race. In his career, he set world, American, and track records as noted in the racing summary section. By definition, a world record is automatically also an American, a track, and a stakes record.}} of 1:12 2/5 for {{convert|6|furlong|m|spell=in}} that had been set by Garbage while carrying only {{convert|107|lb|kg}}.<ref name=OursA>{{Harvnb|Ours|2006|pp=277–279}}</ref>

Seven days later, Man o' War entered the [[Hopeful Stakes]], whose purse of $30,000 made it one of the richest prizes in racing at the time. He faced eight rivals, a small field at the time for such a prestigious race. Heavy rain started to fall as the field headed to the starting post, and Man o' War broke through the barrier several times, delaying the race by twelve minutes. Despite this, he won with "ridiculous ease" by six lengths.<ref name=Hopeful>{{cite web|title=MAN O'WAR AND EXTERMINATOR WIN FEATURE STAKES ON FINAL DAY OF SARATOGA RACING; TWO-YEAR-OLD KING TAKES RICH STAKES|url=https://www.nytimes.com/1919/08/31/archives/man-owar-and-exterminator-win-feature-stakes-on-final-day-of.html|website=The New York Times|access-date=March 27, 2017|date=August 31, 1919|archive-date=May 8, 2018|archive-url=https://web.archive.org/web/20180508230158/https://www.nytimes.com/1919/08/31/archives/man-owar-and-exterminator-win-feature-stakes-on-final-day-of.html|url-status=live}}</ref>

Man o' War then returned to Belmont Park for the [[Futurity Stakes (USA)|Futurity Stakes]] on September 14. The Futurity had a purse of $5,000 added, meaning the prize money was increased by nomination and entry fees. Because the Futurity was one of the preeminent races of the day, the added money was large enough to increase the winner's share of the purse to $26,650.{{efn|By contrast, the winner of the Jockey Club Gold Cup held on the same day won only $5,650.}} Man o' War briefly dueled for the lead with a well-regarded sprinter named Dominique, then opened up a commanding lead. Turning into the stretch, John P. Grier swept into second with an all-out drive but failed to  make up any ground on Man o' War, who had not been urged at any point in the race and won by three lengths while carrying 127 pounds, 10 pounds more than John P. Grier. Journalists, horsemen, and fans agreed that Man o' War had to be considered as one of the greatest American horses of his age, and they compared him favorably to the unbeaten Colin. He completed his two-year-old campaign with nine wins from ten starts and earnings of $82,275.<ref name=Futurity>{{cite web|title=MAN O'WAR BREEZES HOME AN EASY VICTOR IN FUTURITY BEFORE GREAT CROWD AT BELMONT|url=https://query.nytimes.com/gst/abstract.html?res=9F0DE4DC153AE03ABC4C52DFBF668382609EDE&legacy=true|website=The New York Times|access-date=March 27, 2017|date=September 14, 1919|archive-date=March 27, 2017|archive-url=https://web.archive.org/web/20170327171454/http://query.nytimes.com/gst/abstract.html?res=9F0DE4DC153AE03ABC4C52DFBF668382609EDE&legacy=true|url-status=live}}</ref> He was named the [[American Champion Two-Year-Old Colt]] of 1919. He was rated at 136 pounds by handicapper C.C. Ridley of the ''[[Daily Racing Form]]'', 16 pounds ahead of the second-ranked colt, Blazes.<ref name=ACP />

===1920: Three-year-old season===
In 1920, Johnny Loftus was denied a renewal of his jockey's license by The Jockey Club, a development that was rumored to be related to Man o' War's defeat in the Sanford.<ref name=HOF /> He was replaced as the colt's rider by [[Clarence Kummer]]. Over the winter, Man o' War had grown to {{hands|16.2}} high and filled out to about {{convert|1150|lb}} with a {{convert|72|in|cm}} girth.<ref name="Legend">[[Edward L. Bowen]] (2000), ''Man o' War: Thoroughbred Legends'',   Eclipse Press, USA, page 83, {{ISBN|978-1-58150-040-0}}:   states "he filled out to 1,150...height reached 16.2 hands".</ref>

[[File:Man o' War winning the Belmont.jpg|thumb|Man o' War at age three]]
Riddle decided early on to restrict Man o' War to races within his own age division, in large part because the most valuable races in the country were restricted to three-year-olds. He decided not to enter him in the [[Kentucky Derby]] because it was run only a few days before his preferred target, the Preakness Stakes, which was held close to the Riddle farm where Man o' War had spent the winter.<ref name=Ambitious /> Riddle also did not like racing in [[Kentucky]] and believed it was too early in the year for a young horse to go a mile and a quarter. Thus, Man o' War did not have a chance to complete what later became known as the [[Triple Crown of Thoroughbred Racing (United States)|U.S. Triple Crown of Thoroughbred Racing]], consisting of the Kentucky Derby, Preakness Stakes, and Belmont Stakes. The previous year, [[Sir Barton]] had won the three races, which gained in prestige and importance 10 years later when [[Gallant Fox]] accomplished the same feat under a great deal of media attention.<ref>{{Harvnb|Ours|2006|p=58}}.</ref>

Instead, Man o' War made his three-year-old debut on May 18 in the Preakness Stakes, then run at a distance of {{frac|1|1|8}} miles. Despite the long layoff and never having raced beyond {{convert|6|furlong|m|spell=in}}, he went off as the 4-5 favorite in a field of nine horses that included his old rival Upset, who had finished second in the Derby. Man o' War broke alertly and took the lead within the first 10 yards, then established a two-length lead down the backstretch while under restraint. As they rounded the final turn, Upset started to close ground so Kummer loosened his grip. Man o' War responded by again pulling away, completing the opening mile in what would have been a new [[Pimlico Race Course|Pimlico]] track record of 1:38{{frac|3|5}}. Eased in the final furlong, he won by {{frac|1|1|2}} lengths over Upset in a final time of 1:51{{frac|3|5}}.<ref name=Preakness>{{cite news |url=https://query.nytimes.com/gst/abstract.html?res=9E05E6D8173AEE32A2575AC1A9639C946195D6CF |title=MAN O' WAR FIRST IN THE PREAKNESS |work=New York Times |date=May 19, 1920 |access-date=August 5, 2012 |archive-date=November 8, 2012 |archive-url=https://web.archive.org/web/20121108003200/http://query.nytimes.com/gst/abstract.html?res=9E05E6D8173AEE32A2575AC1A9639C946195D6CF |url-status=live }}</ref>

The horse was then returned to his home base at Belmont Park, where a crowd of 25,000 turned out to watch him in the [[Withers Stakes]] on May 29. He was sent off at "generous" odds of 1–7 against two rivals: [[Wildair]], winner of the [[Metropolitan Handicap]] who was at odds of 6–1, and the overmatched David Harum at 30–1. Man o' War again seized the early lead, completing the first quarter-mile in :{{frac|23|3|5}} while tugging at the bit. When Wildair tried to close ground around the turn, Kummer briefly released his hold and Man o' War opened up his lead again. Eased in the final sixteenth of a mile, he won by two lengths while setting an American race record of 1:35{{frac|4|5}} for the mile.<ref name="Withers">{{cite web|title=MAN O' WAR SETS RECORD FOR MILE; Riddle's Wonderful Three-YearOld Clips American Racing Mark in the Withers.|url=https://query.nytimes.com/gst/abstract.html?res=9B04E6DB143AEE32A25753C3A9639C946195D6CF&legacy=true|website=The New York Times|access-date=March 26, 2017|date=May 30, 1920|archive-date=March 26, 2017|archive-url=https://web.archive.org/web/20170326140136/http://query.nytimes.com/gst/abstract.html?res=9B04E6DB143AEE32A25753C3A9639C946195D6CF&legacy=true|url-status=live}}</ref>{{efn|Man o' War's time of 1:35 4/5 in the Withers broke the American race record for a mile by {{frac|2|5}} second. However, in a time trial in 1918, Roamer completed a mile in 1:34 4/5.<ref name=Withers />}}
  
[[File:Manowar belmontStakes.jpg|thumb|Man o' War after winning the Belmont Stakes]]
Man o' War's next start was on June 12 in the Belmont Stakes, then run at a distance of {{frac|1|3|8}} miles. The race establish him as one of the all-time greats with an "almost unbelievably brilliant performance" before a crowd of 25,000. At odds of 1-20, he faced one rival, the well-regarded colt Donnaconna. Man o' War led from the start, and Kummer let him run freely at the top of the stretch, allowing Man o' War to draw away by 20 lengths. Although eased in the final furlong, he set a world record of 2:14{{frac|1|5}}, beating the previous standard set in England by over two seconds and beating Sir Barton's American record by over three seconds.<ref name="Belmont">{{cite web|title=WORLD RECORD IS SET BY MAN O' WAR; Riddle's Speed Miracle Shatters All Previous Marks for Mile and Three Furlongs|url=https://www.nytimes.com/1920/06/13/archives/world-record-is-set-by-man-o-war-riddles-speed-miracle-shatters-all.html|website=The New York Times|access-date=March 27, 2017|date=June 13, 1920}}</ref> This time stood as the American record until 1961, when Wise Ship ran the distance in 2:14 flat on a turf course. It stood as the American dirt record until 1991.<ref name=OursA />

Ten days later, Man o' War returned in the [[Stuyvesant Handicap]], which he won against one rival. His odds of 1 to 100 were believed to be the lowest ever offered in an American horse race.<ref name=Stuyvesant />

His next start in the [[Dwyer Stakes]] on July 10 proved far more demanding. The colt John P. Grier, who had challenged Man o' War in the Belmont Futurity at age two, had matured into the second-best three-year-old in the country. Under the conditions of the Dwyer, Man o' War was assigned 126 pounds while John P. Grier carried only 108. The two colts scared away all rivals, turning the Dwyer into a match race. They raced side by side down the backstretch, with Man o' War on the rail blocking John P. Grier from the view of the spectators. The horses ran the race as a sprint, completing the first three-quarters of a mile in 1:09 2/5 – an American record. As they entered the turn, Man o' War started to open up an advantage but John P. Grier rallied and got back on even terms. They completed the mile together in a time of 1:35 3/5, breaking Man o' War's American record set in the Withers. John P. Grier made another surge, and for a moment the spectators believed that he would win the race. Kummer then hit Man o' War with the whip, and he made a final surge, opening up a lead of two lengths in the final fifty yards. The final time was 1:49 1/5, a world record for {{frac|1|1|8}} miles.<ref name=Dwyer />

[[File:Man o' War 1920 from nypl.jpg|thumb|Man o' War in the summer of 1920]]
Man o' War was then shipped to Saratoga and was entered in the [[Kenner Stakes|Miller Stakes]] on August 7. There was a then-record crowd of 35,000, many of whom gathered in the saddling area where Man o' War was surrounded by twelve [[Pinkerton Agency|Pinkerton]] guards. His jockey for the race was [[Earl Sande]], replacing an injured Kummer. As expected, Man o' War took the early lead and was unchallenged in a six-length victory. He had been tightly restrained, but even so, his time of 1:56 3/5 for the distance of {{frac|1|3|16}} miles was just {{frac|3|5}} seconds off the track record.<ref name=Miller /> "I never felt anything like that horse in my life," said Sande after the race. "He strides farther than anything I ever rode and does it so handily that you would not think he was running at all."<ref>{{cite web |title=Sande Gets Fresh Perspective Aboard Man o' War |url=https://www.bloodhorse.com/horse-racing/articles/242696/sande-gets-fresh-perspective-aboard-man-o-war |website=BloodHorse.com |access-date=6 August 2020 |language=en |archive-date=30 September 2020 |archive-url=https://web.archive.org/web/20200930110545/https://www.bloodhorse.com/horse-racing/articles/242696/sande-gets-fresh-perspective-aboard-man-o-war |url-status=live }}</ref>

His connections had a brief scare when Man o' War exhibited signs of [[Lameness (equine)|lameness]] after a workout on August 17, but he quickly recovered.<ref>{{cite web|title=Man o' War Has Completely Recovered from Lameness|url=https://www.nytimes.com/1920/08/19/archives/man-o-war-has-completely-recovered-from-lameness.html|website=The New York Times|access-date=March 28, 2017|date=August 19, 1920|archive-date=July 25, 2018|archive-url=https://web.archive.org/web/20180725214949/https://www.nytimes.com/1920/08/19/archives/man-o-war-has-completely-recovered-from-lameness.html|url-status=live}}</ref> On August 21, he entered the [[Travers Stakes]] where he faced his two strongest rivals: Upset for the fifth and last time, and John P. Grier for the third time. A record crowd overflowed the grandstand and stretched down the rail and track apron. As a result, Saratoga management opened the infield, and 5,000 people moved across the track to line the inner rail.<ref name=Travers />

Man o' War's jockey for the race was [[Andy Schuttinger]] as Kummer was still recovering from injury and Sande was not available. After the start, John P. Grier tried to match strides with Man o' War but could not keep up. After establishing a clear lead by the first turn, Schuttinger took hold of Man o' War for the rest of the race. Upset made a late run to move into second, but Man o' War won by three lengths. Despite not being extended, he completed the distance of {{frac|1|1|4}} miles in 2:01 4/5,<ref name=Travers /> equaling the track record set earlier in the year by Sir Barton. This record stood until 1941. It is possible the time was also a world record, as the existing record time of 2:00 flat credited to [[Whisk Broom II]] in 1913 was disputed.<ref name=OursA />

Riddle contemplated entering Man o' War against older horses for the first time in the $5,000 Saratoga Gold Cup but ultimately chose to enter the $15,000 [[Lawrence Realization Stakes]] against three-year-olds instead.<ref>{{Harvnb|Ours|2006|pp=205–207}}</ref> When his only rival scratched from the race, it nearly became a [[walkover]] until Mrs. Riddle's niece, [[Walter M. Jeffords Sr.|Sarah Jeffords]], entered Hoodwink. To compensate for the lack of competition, Riddle announced that Man o' War would be allowed to show his speed. He was reunited with regular jockey Kummer, after being ridden by Sande and Schuttinger while Kummer recovered from an injury. Kummer neither restrained the horse nor urged him at any point in the race. Running as he pleased, Man o' War won by slightly more than a quarter-mile – the official margin was 100 lengths – while setting a world record of 2:40 4/5 for a mile and five-eighths. This broke the world record set in England by {{frac|1|3|5}} seconds and lowered the American record by over four seconds.<ref name=Realization>{{cite web|title=WORLD MARK AGAIN SET BY MAN O' WAR; Riddle's Speed Miracle Breaks 13-Furlong Record in Lawrence Realization|url=https://www.nytimes.com/1920/09/05/archives/world-mark-again-set-by-man-o-war-riddles-speed-miracle-breaks.html|website=The New York Times|access-date=March 28, 2017|date=September 5, 1920|archive-date=July 6, 2018|archive-url=https://web.archive.org/web/20180706081146/https://www.nytimes.com/1920/09/05/archives/world-mark-again-set-by-man-o-war-riddles-speed-miracle-breaks.html|url-status=live}}</ref> This world record stood until 1956, when it was broken by Man o' War's great-grandson [[Swaps (horse)|Swaps]].<ref name=OursA />

The performance drew superlatives from the racing community. Turf writer B.K. Beckwith later called it "the most astounding display of arrogant annihilation", adding, "[Man o' War] was like a big red sheet of flame running before a prairie wind".<ref>{{cite web |title=1920 Lawrence Realization Stakes · Man o' War: In Others' Words |url=https://keenelandlibrary.omeka.net/exhibits/show/manowar/1920/1920lawrencerealization |website=keenelandlibrary.omeka.net |access-date=6 July 2018 |archive-date=6 July 2018 |archive-url=https://web.archive.org/web/20180706050321/https://keenelandlibrary.omeka.net/exhibits/show/manowar/1920/1920lawrencerealization |url-status=live }}</ref> The ''New York Times'' commented, "at Belmont Park yesterday [Man o' War] gave what was undoubtedly the greatest exhibition of speed over a considerable distance of ground ever witnessed anywhere."<ref name=Realization />

Man o' War's next start was the [[Jockey Club Gold Cup]] on September 12, the first time he entered a race open to older horses. The race organizers tried to lure Sir Barton into entering by promising to increase the purse from $15,000 to $25,000 if he did so, but Sir Barton needed more time to recover from his last race. It was also speculated that Sir Barton's owner was holding out for an even higher purse for a match race with Man o' War. The connections of [[Exterminator (horse)|Exterminator]], another future Hall of Famer, were also considering the race but bypassed it because, under the weight-for-age conditions of the Gold Cup, he would have had to concede Man o' War five pounds. As it was, Man o' War faced only one competitor and won under tight restraint by fifteen lengths. Although it was declared a hollow victory by ''The New York Times'', Man o' War still set an American record for {{frac|1|1|2}} miles of 2:28 4/5, breaking the existing mark by 4/5 seconds.<ref name=GoldCup>{{harvnb|Ours|2006|pp=215–218}}</ref>

Man o' War next entered the [[Potomac Handicap]] at [[Havre de Grace Racetrack]] in Maryland on September 18. He was assigned 138 pounds, conceding from 24 to 34 pounds to his rivals, which included Kentucky Derby winner [[Paul Jones (horse)|Paul Jones]]. Man o' War faced an early challenge from Blazes, then turned back a late run by Wildair to win by {{frac|1|1|2}} lengths while breaking the track record by {{frac|1|5}} seconds.<ref name="Potomac">{{cite web|title=HEAVY BURDEN FAILS TO STOP MAN O' WAR; Wonder Horse Carries 138 Pounds to a New Track Record|url=https://query.nytimes.com/gst/abstract.html?res=9F06E5DC173AE532A2575AC1A96F9C946195D6CF&legacy=true|website=The New York Times|access-date=March 28, 2017|date=September 19, 1920|archive-date=October 1, 2017|archive-url=https://web.archive.org/web/20171001123032/https://query.nytimes.com/gst/abstract.html?res=9F06E5DC173AE532A2575AC1A96F9C946195D6CF&legacy=true|url-status=live}}</ref> Although Man o' War was not seriously challenged, the high weight and a poorly maintained racing surface took a toll: He came out of the race with a swollen tendon on his right foreleg.<ref>{{harvnb|Ours|2006|pp=2222–226}}</ref>

[[File:The Race of the Age (1920) - 1.jpg|thumb|"The Race of the Age"]]
The final start of Man o' War's career came in [[Windsor, Ontario]], Canada, in the [[Kenilworth Park Racetrack|Kenilworth Park]] Gold Cup on October 12. The event was so highly anticipated that it became the first horse race to be filmed in its entirety, with the resulting footage later shown in movie theaters across the country. The race was originally intended to be a face-off between the three great horses of the time: Man o' War, Sir Barton, and Exterminator. However, the owners of Sir Barton and Man o' War agreed to a distance of {{frac|1|1|4}} miles, which was too short for Exterminator to run his best, and they agreed to a weight-for-age format, under which the older Exterminator would concede weight to Man o' War. Therefore, Exterminator was not entered, and in fact, raced that same day on a different track.<ref>{{harvnb|Ours|2006|pp=230–238}}</ref>

In what was now essentially a match race, the advantage shifted to Man o' War, whose front-running style allowed him to dictate the pace. He was almost flat-footed at the break but quickly gathered speed to draw clear of Sir Barton in the first furlong. Kummer then slowed the pace while maintaining a two-length lead down the backstretch. On the final turn, Man o' War put in a brief spurt and quickly opened the lead to five lengths. Kummer again pulled him in and Man o' War maintained a steady pace to the wire to win by seven lengths in a "ridiculously easy" fashion. Although the time of 2:03 was well off the American record shared by Man o' War and Sir Barton, it still broke the track record by over six seconds. Man o' War's share of the purse made him the highest-earning horse in American history.<ref name=Kenilworth /> The gold trophy presented in the winner's circle, designed by [[Tiffany & Co]], was later donated by Mrs. Riddle to Saratoga and is now used as the trophy for the Travers Stakes.<ref>{{cite web|title=See Man o' War Cup on Monday|url=http://www.saratogian.com/article/ST/20150829/NEWS/150829603|website=The Saratogian|date=24 August 2000|access-date=March 28, 2017|language=en|archive-date=1 October 2017|archive-url=https://web.archive.org/web/20171001123740/http://www.saratogian.com/article/ST/20150829/NEWS/150829603|url-status=live}}</ref>

There were no formal awards for [[American Horse of the Year]] at the time, but Man o' War was informally acknowledged as such in a retroactive poll of turf writers.<ref>{{cite web|title=American Horse of the Year|url=http://www.tbheritage.com/TurfHallmarks/Champs/AmHorseoftheYear.html|website=www.tbheritage.com|access-date=March 22, 2017|archive-date=July 16, 2011|archive-url=https://web.archive.org/web/20110716152753/http://www.tbheritage.com/TurfHallmarks/Champs/AmHorseoftheYear.html|url-status=live}}</ref> In its summary of the sporting year, ''[[The New York Times]]'' stated, "A superman (Babe Ruth) and a superhorse – these were sport's greatest contributions to the history of the year about to close. Some might rate the superhorse, Man o' War, as the outstanding figure of the two, for he has passed on from the field of competition and has left a story of achievement which may never be surpassed."<ref>{{cite web|title=SPORT SCALES NEW HEIGHTS IN 1920; Man O' War and Babe Ruth Leading Figures in History Making Year|url=https://timesmachine.nytimes.com/timesmachine/1920/12/26/103522337.html?pageNumber=23|website=timesmachine.nytimes.com|access-date=March 22, 2017|language=en|date=December 26, 1920}}</ref>

Over his two-year career, Man o' War won 20 of 21 races, setting three world records, two American records, and three track records.

===Weight carrying===
At the time, there were few [[weight-for-age]] races in the United States. The majority of races were run under handicap conditions, with better horses being assigned higher weights in an attempt to equalize the chances of the other horses in the field. As one writer put it, "the one certain thing about racing is that weight will eventually stop the greatest of racers and bring them down to equal terms with horses of much less quality."<ref name=Ambitious>{{cite web|title=AMBITIOUS PLANS FOR MAN O'WAR; Samuel Riddle Seeks Three-Year-Old Crown for His Juvenile King of Last Season. Will Get High Imposts.|url=https://www.nytimes.com/1920/01/25/archives/ambitious-plans-for-man-owar-samuel-riddle-seeks-threeyearold-crown.html|website=The New York Times|access-date=March 27, 2017|date=January 25, 1920|archive-date=March 7, 2018|archive-url=https://web.archive.org/web/20180307010239/https://www.nytimes.com/1920/01/25/archives/ambitious-plans-for-man-owar-samuel-riddle-seeks-threeyearold-crown.html|url-status=live}}</ref> As a two-year-old, Man o' War carried {{convert|130|lb}} in six races; few racehorses have ever carried that much at any age. As a three-year-old, he carried as much as {{convert|138|lb}} in races, conceding as much as {{convert|34|lb}} to other horses. Had he raced at age four, the handicappers would have started him at 140 pounds, increasing the amount each time he won until such time as Man o' War either lost or was injured. For this reason, Riddle decided to retire him at the end of his three-year-old campaign.<ref>{{harvnb|Ours|2006|pp=256–257}}</ref>

==Race record==
{| class="wikitable sortable"
!Date
!Track
!Distance
!Race
!Finish
!Margin
!Time
!Weight<br /> (lbs)
!Ref
|-
 |{{dts|1919|6|6}}
|[[Belmont Park]] 
|5 furlongs 
|maiden 
|1 
|{{ntsh|6}}6 lengths 
|0:59 flat 
|115 
|<ref>{{cite web|title=Valor Too Speedy for Omar Khayyam|url=https://timesmachine.nytimes.com/timesmachine/1919/06/07/issue.html|website=The New York Times|access-date=March 27, 2017|page=10|language=en|date=June 7, 1919}}</ref> 
|- 
 |{{dts|1919|6|9}}
|[[Belmont Park]] 
|{{frac|5|1|2}} furlongs 
|[[Keene Memorial Stakes]] 
|1 
|{{ntsh|3}}3 lengths 
|1:05 3/5 
|115 
|<ref name=Keene /> 
|- 
 |{{dts|1919|6|21}}
|[[Jamaica Race Course]] 
|{{frac|5|1|2}} furlongs 
|Youthful Stakes 
|1 
|{{ntsh|2.5}}{{frac|2|1|2}} lengths 
|1:06 3/5 
|120 
|<ref>{{cite web|title=NATURALIST WINS THE LONG BEACH; Man o'War Proves Worth Among Two-Year-Olds|url=https://www.nytimes.com/1919/06/22/archives/naturalist-wins-the-long-beach-captures-handicap-carrying-top.html|website=The New York Times|access-date=March 27, 2017|date=June 22, 1919|archive-date=July 25, 2018|archive-url=https://web.archive.org/web/20180725215149/https://www.nytimes.com/1919/06/22/archives/naturalist-wins-the-long-beach-captures-handicap-carrying-top.html|url-status=live}}</ref> 
|- 
 |{{dts|1919|6|23}}
|[[Aqueduct Racetrack|Aqueduct]] 
|5 furlongs 
|Hudson Stakes 
|1 
|{{ntsh|1.5}}{{frac|1|1|2}} lengths 
|1:01 3/5 
|130 
|<ref>{{cite news|title=GREAT CROWD SEES ETERNAL BREAK LOSING STREAK IN BROOKLYN HANDICAP; Man o' War Again Shows Wonderful Speed in Winning the Hudson Stakes| work=The New York Times |url=https://timesmachine.nytimes.com/timesmachine/1919/06/24/96320783.html?pageNumber=20|language=en}}</ref> 
|- 
 |{{dts|1919|7|5}}
|[[Aqueduct Racetrack|Aqueduct]] 
|6 furlongs 
|[[Tremont Stakes]] 
|1 
|{{ntsh|1}}1 length 
|1:13 
|130 
|<ref>{{cite web|title=Aqueduct Summaries|url=https://timesmachine.nytimes.com/timesmachine/1919/07/06/issue.html|website=The New York Times|access-date=March 27, 2017|page=21|language=en|date=July 6, 1919}}</ref> 
|- 
 |{{dts|1919|8|2}}
|[[Saratoga Race Course]] 
|6 furlongs 
|[[United States Hotel Stakes]] 
|1 
|{{ntsh|2}}2 lengths over Upset
|1:12 2/5{{efn|Tied stakes record<ref name=OursA />}} 
|130 
|<ref name=USHotel /> 
|- 
 |{{dts|1919|8|13}}
|[[Saratoga Race Course]] 
|6 furlongs 
|[[Sanford Stakes|Sanford Memorial]] 
|2 
|{{ntsh|-0.25}}about a neck behind Upset 
|1:11 1/5{{efn|Upset broke the existing stakes record by 2{{frac|1|5}} seconds<ref name=OursA />}} 
|130 
|<ref name=Sanford /> 
|- 
 |{{dts|1919|8|23}}
|[[Saratoga Race Course]] 
|6 furlongs 
|[[Grand Union Hotel Stakes]] 
|1 
|{{ntsh|1}}1 length over Upset
|1:12{{efn|New stakes record, breaking Sweep On's record by two-fifths of a second<ref name=OursA />}} 
|130 
|<ref name=OursA /> 
|- 
 |{{dts|1919|8|30}}
|[[Saratoga Race Course]] 
|6 furlongs 
|[[Hopeful Stakes]] 
|1 
|{{ntsh|6}}6 lengths over John P. Grier
|1:13 
|130 
|<ref name=Hopeful /> 
|- 
 |{{dts|1919|9|12}}
|[[Belmont Park]] 
|6 furlongs 
|[[Belmont Futurity Stakes|Belmont Futurity]] 
|1 
|{{ntsh|2.5}}{{frac|2|1|2}} lengths 
|1:11 3/5{{efn|Fastest Futurity since the race was moved to Belmont Park in 1913<ref name=OursA />}} 
|127 
|<ref name=Futurity /> 
|- 
 |{{dts|1920|5|18}}
|[[Pimlico Race Course]] 
|{{frac|1|1|8}} miles 
|[[Preakness Stakes]] 
|1 
|{{ntsh|1.5}}{{frac|1|1|2}} lengths over Upset
|1:51 3/5 
|126 
|<ref name=Preakness /> 
|- 
 |{{dts|1920|5|29}}
|[[Belmont Park]] 
|1 mile 
|[[Withers Stakes]] 
|1 
|{{ntsh|2}}2 lengths 
|1:35 4/5{{efn|Tied American race record}} 
|118 
|<ref name=Withers /> 
|- 
 |{{dts|1920|6|12}}
|[[Belmont Park]] 
|{{frac|1|3|8}} miles 
|[[Belmont Stakes]] 
|1 
|{{ntsh|20}}20 lengths 
|2:14 1/5{{efn|New world record}} 
|126 
|<ref name=Belmont /> 
|- 
 |{{dts|1920|6|22}}
|[[Jamaica Race Course]] 
|1 mile 
|[[Stuyvesant Handicap]] 
|1 
|{{ntsh|8}}8 lengths 
|1:41 3/5 
|135 
|<ref name="Stuyvesant">{{cite web|title=MAN O' WAR SETS NEW PRICE RECORD; Wins Stuyvesant Handicap at 1 to 100|url=https://www.nytimes.com/1920/06/23/archives/man-o-war-sets-new-price-record-wins-stuyvesant-handicap-at-1-to.html|website=The New York Times|access-date= March 27, 2017|date=June 23, 1920}}</ref> 
|- 
 |{{dts|1920|7|10}}
|[[Aqueduct Racetrack|Aqueduct]] 
|{{frac|1|1|8}} miles 
|[[Dwyer Stakes]] 
|1 
|{{ntsh|1.5}}{{frac|1|1|2}} lengths over John P. Grier
|1:49 1/5{{efn|New world record for {{frac|1|1|8}} miles. Also set American records for 6 furlongs and 1 mile<ref name=Dwyer />}} 
|126 
| <ref name="Dwyer">{{cite web|title=MAN O'WAR AGAIN SETS WORLD MARK; Shaves Mile-and-a-Furlong Record in Wonderful Speed Duel with John P. Grier|url=https://www.nytimes.com/1920/07/11/archives/man-owar-again-sets-world-mark-shaves-mileandafurlong-record-in.html|website=The New York Times|access-date=March 28, 2017|date=July 11, 1920|archive-date=July 25, 2018|archive-url=https://web.archive.org/web/20180725215617/https://www.nytimes.com/1920/07/11/archives/man-owar-again-sets-world-mark-shaves-mileandafurlong-record-in.html|url-status=live}}</ref> 
|- 
 |{{dts|1920|8|7}}
|[[Saratoga Race Course]] 
|{{frac|1|3|16}} miles 
|[[Kenner Stakes|Miller Stakes]] 
|1 
|{{ntsh|6}}6 lengths 
|1:56 3/5 
|131 
|<ref name="Miller">{{cite web|title=MAN O' WAR ROMPS TO EASY VICTORY|url=https://www.nytimes.com/1920/08/08/archives/man-o-war-romps-to-easy-victory-sd-riddles-great-colt-merely.html|website=The New York Times|access-date=March 28, 2017|date=August 8, 1920|archive-date=July 25, 2018|archive-url=https://web.archive.org/web/20180725214458/https://www.nytimes.com/1920/08/08/archives/man-o-war-romps-to-easy-victory-sd-riddles-great-colt-merely.html|url-status=live}}</ref> 
|- 
 |{{dts|1920|8|21}}
|[[Saratoga Race Course]] 
|{{frac|1|1|4}} miles 
|[[Travers Stakes]] 
|1 
|{{ntsh|3}}3 lengths over Upset and John P. Grier
|2:01 4/5{{efn|Tied track record}} 
|129 
|<ref name="Travers">{{cite web|title=MAN O' WAR BEATS GRIER WITH EASE; Peerless Three-Year-Old Races Whitney Colt Into Submission at Saratoga|url=https://www.nytimes.com/1920/08/22/archives/man-o-war-beats-grier-with-ease-peerless-threeyearold-races-whitney.html|website=The New York Times|access-date=March 28, 2017|date=August 22, 1920|archive-date=July 25, 2018|archive-url=https://web.archive.org/web/20180725215043/https://www.nytimes.com/1920/08/22/archives/man-o-war-beats-grier-with-ease-peerless-threeyearold-races-whitney.html|url-status=live}}</ref> 
|- 
 |{{dts|1920|9|4}}
|[[Belmont Park]] 
|{{frac|1|5|8}} miles 
|[[Lawrence Realization Stakes]] 
|1 
|{{ntsh|100}}>100 lengths 
|2:40 4/5{{efn|New world record}} 
|126 
|<ref name=Realization /> 
|- 
 |{{dts|1920|9|12}}
|[[Belmont Park]] 
|{{frac|1|1|2}} miles 
|[[Jockey Club Gold Cup]] 
|1 
|{{ntsh|15}}15 lengths 
|2:28 4/5{{efn|New American record}} 
|118 
|<ref name=GoldCup /> 
|- 
 |{{dts|1920|9|18}}
|[[Havre de Grace Racetrack|Havre de Grace]] 
|{{frac|1|1|16}} miles 
|[[Potomac Handicap]] 
|1 
|{{ntsh|1.5}}{{frac|1|1|2}} lengths 
|1:44 4/5{{efn|New track record}} 
|138 
|<ref name=Potomac /> 
|- 
 |{{dts|1920|10|12}}
|[[Kenilworth Park Racetrack|Kenilworth Park]]
|{{frac|1|1|4}} miles
|Kenilworth Park Gold Cup
|1
|{{ntsh|7}}7 lengths over Sir Barton
|2:03{{efn|New Track record}}
|120
|<ref name="Kenilworth"/>
|}

==Stud record==
{{quote box
| quote = "He's got everythin' a horse ought to have and he's got it where a horse ought to have it. He's the mostest horse."<ref name=Chasing />
| source = ''— Will Harbut''
| width = 18em
| align = right
| bgcolor = #ffef99
}}After his undefeated season as a three-year-old, Man o' War was retired to [[stud farm|stud]] in Lexington, originally at Elizabeth Daingerfield's Hinata Farm.<ref>{{cite news |title=Man O' War Makes His Farewell Bow |url=https://timesmachine.nytimes.com/timesmachine/1921/01/29/103541342.pdf |access-date=30 January 2021 |work=The New York Times |volume=LXX |issue=23016 |date=29 January 1921 |page=13 |archive-date=10 August 2021 |archive-url=https://web.archive.org/web/20210810130550/https://timesmachine.nytimes.com/timesmachine/1921/01/29/103541342.pdf |url-status=live }}</ref> In May 1922, he was moved to Faraway Farm, a property on Huffman Mill Pike outside of Lexington that had been jointly purchased by Riddle, his wife's niece Sarah Jeffords and her husband, Walter. This land, including the stallion barn, is now part of Mt. Brilliant Farm. In late 1936 or early 1937, the Riddle horses were moved to an adjacent property, also called Faraway Farm, where Man o' War spent his final years. This portion of Faraway is now called Man o' War Farm.<ref name=Karon /><ref name=Chasing>{{cite web|last1=Livingston|first1=Barbara|title=Chasing Man o' War - the photo blog|url=http://www.drf.com/blogs/chasing-man-o-war-photo-blog|website=Daily Racing Form|access-date=March 29, 2017|language=en|archive-date=March 29, 2017|archive-url=https://web.archive.org/web/20170329141936/http://www.drf.com/blogs/chasing-man-o-war-photo-blog|url-status=live}}</ref>
[[File:Man o' War (1917).png|thumb|Man o' War at stud]]
During his lifetime, over 500,000 people signed the guest book at Faraway Farm<ref name=ACP /> and as many as 1.5 million are estimated to have visited him there.<ref name="Livingston2017" /> His longtime groom, Will Harbut, would lead the stallion out on display and proudly proclaim his charge's many accomplishments.<ref name="HOF">{{cite web|title=Man o' War {{!}} National Museum of Racing and Hall of Fame|url=https://www.racingmuseum.org/hall-of-fame/man-o-war|website=www.racingmuseum.org|access-date=March 25, 2017|archive-date=August 8, 2018|archive-url=https://web.archive.org/web/20180808133055/https://www.racingmuseum.org/hall-of-fame/man-o-war|url-status=live}}</ref> Man o' War and Harbut were featured together on the cover of the ''[[Saturday Evening Post]]'' in 1941. This photograph inspired a popular collectors' plate, "Forever Friends", by equine artist Fred Stone.<ref>{{cite web|title=A Living Flame: Will Harbut and Man o' War|url=https://thevaulthorseracing.wordpress.com/2011/08/23/a-living-flame-will-harbut-and-man-owar/|website=THE VAULT: Horse racing past and present|access-date=October 1, 2017|date=August 23, 2011|archive-date=October 1, 2017|archive-url=https://web.archive.org/web/20171001123013/https://thevaulthorseracing.wordpress.com/2011/08/23/a-living-flame-will-harbut-and-man-owar/|url-status=live}}</ref>

Man o' War was the [[leading sire in North America]] of 1926 and was runner-up in 1928, 1929 and 1937. The Jockey Club credits him with 62 stakes winners from 381 named foals.<ref name="ACP">{{cite web|last1=Hunter|first1=Avalyn|title=Man o' War (horse)|url=http://www.americanclassicpedigrees.com/man-o-war.html|website=American Classic Pedigrees|access-date=March 25, 2017|archive-date=March 25, 2017|archive-url=https://web.archive.org/web/20170325112819/http://www.americanclassicpedigrees.com/man-o-war.html|url-status=live}}</ref> Riddle restricted Man o' War's book to about 25 mares a year, most of which were owned by him or his friends and family. Though many breeding experts believe that Riddle did not breed the stallion to enough good mares (especially after the first five seasons), he still sired many leading horses. Man o' War's first crop included three horses who were considered champions: [[American Flag (horse)|American Flag]] (Belmont Stakes), [[Florence Nightingale (horse)|Florence Nightingale]] ([[Coaching Club American Oaks]]) and [[Maid at War]] ([[Alabama Stakes]]). His second crop was highlighted by [[Crusader (horse)|Crusader]], who won the Belmont Stakes in 1926 and was largely accepted as the best racehorse of 1926. Among Man o' War's other famous offspring were [[1929 Kentucky Derby]] winner [[Clyde Van Dusen (horse)|Clyde Van Dusen]], [[Battleship (horse)|Battleship]] (who won the 1938 English [[Grand National]] steeplechase), and War Admiral, the 1937 Triple Crown winner and the second official Horse of the Year. Another of his offspring, [[Hard Tack (horse)|Hard Tack]], sired [[Seabiscuit]], who was Horse of the Year in 1938.<ref>{{cite web|last1=Peters|first1=Anne|title=Man o' War|url=http://www.tbheritage.com/Portraits/ManOWar.html|website=www.tbheritage.com|access-date=March 29, 2017|archive-date=May 20, 2015|archive-url=https://web.archive.org/web/20150520101340/http://www.tbheritage.com/Portraits/ManOWar.html|url-status=live}}</ref>

Man o' War's most successful sons at stud were War Admiral and [[War Relic]], and War Relic's branch of the male line survives today. [[Tiznow]], [[Tourist (horse)|Tourist]], [[Da' Tara]], [[In Reality]], [[Desert Vixen]], [[Honour and Glory]], [[Bal a Bali]], [[Skywalker (horse)|Skywalker]] and [[Bertrando]] are all sire-line descendants of Man o' War.<ref name="Legacy">{{cite web|last1=Russo|first1=Nicole|title=Man o' War at 100: Champion's legacy echoes through century|url=http://www.drf.com/news/man-o-war-100-champions-legacy-echoes-through-century|website=Daily Racing Form|access-date=March 29, 2017|language=en|archive-date=March 29, 2017|archive-url=https://web.archive.org/web/20170329142110/http://www.drf.com/news/man-o-war-100-champions-legacy-echoes-through-century|url-status=live}}</ref> His line is also still active in Europe through classic winner [[Known Fact]] and his champion son [[Warning (British horse)|Warning]].<ref>{{cite web |last1=Sparkman |first1=John P. |title=Man o' War still the benchmark a century later |url=https://www.drf.com/news/sparkman-man-o-war-still-benchmark-century-later |website=www.drf.com |access-date=7 May 2021 |language=en |archive-date=7 May 2021 |archive-url=https://web.archive.org/web/20210507165325/https://www.drf.com/news/sparkman-man-o-war-still-benchmark-century-later |url-status=live }}</ref>

Man o' War's influence in modern pedigrees is magnified by the success of his daughters as [[broodmares]]. Although Man o' War never led the broodmare sire list, he was the runner-up ten times and finished in the top ten 22 times.<ref name=ACP /> Female line descendants from Man o' War include [[Eight Thirty]], [[Stymie (horse)|Stymie]], [[Nijinsky (horse)|Nijinsky]], [[Sword Dancer]], [[Pavot]], [[Riverman]], [[Jim French (horse)|Jim French]], [[Sir Ivor]] and [[Kelso (horse)|Kelso]].<ref>{{cite web|title=Man o' War|url=http://www.bloodlines.net/TB/Bios2/Bios-M/ManOWar.htm|website=www.bloodlines.net|access-date=March 29, 2017|archive-date=December 9, 2017|archive-url=https://web.archive.org/web/20171209032256/http://www.bloodlines.net/TB/Bios2/Bios-M/ManOWar.htm|url-status=dead}}</ref> War Admiral was also a leading broodmare sire, especially when crossed with the influential mare [[La Troienne]] and his name can be found in many modern pedigrees through such horses as [[Seattle Slew]], [[Buckpasser]] and [[Dr. Fager]].<ref>{{cite web|last1=Hunter|first1=Avalyn|title=War Admiral (horse)|url=http://www.americanclassicpedigrees.com/war-admiral.html|website=American Classic Pedigrees|access-date=March 29, 2017|archive-date=April 15, 2017|archive-url=https://web.archive.org/web/20170415003148/http://www.americanclassicpedigrees.com/war-admiral.html|url-status=live}}</ref> American Flag also contributed to Man o' War's modern influence as he was the sire of the second dam of [[Raise A Native]], who is an almost "omnipresent name in American pedigrees".<ref>{{cite web|last1=Mitchell|first1=Frank|title=Man o' War and American Flag|url=http://www.paulickreport.com/features/pin-oak-stud-presents-bloodlines/lane-s-end-brings-you-the-weekender-pedigree-man-o-war-and-american-flag/|website=Paulick Report|date=16 November 2010|access-date=March 29, 2017|archive-date=29 March 2017|archive-url=https://web.archive.org/web/20170329142344/http://www.paulickreport.com/features/pin-oak-stud-presents-bloodlines/lane-s-end-brings-you-the-weekender-pedigree-man-o-war-and-american-flag/|url-status=live}}</ref> Some modern breeders design matings to concentrate the influence of Man o' War through deep inbreeding.<ref>{{cite web|title=Inbreeding Notations in Thoroughbred Pedigrees|url=http://cs.bloodhorse.com/blogs/scot/archive/2009/03/31/inbreeding-notations-in-thoroughbred-pedigrees.aspx|website=cs.bloodhorse.com|access-date=March 29, 2017|language=en}}</ref> For example, he appears 23 times in the bloodline of [[American Pharoah]], the 2015 Triple Crown winner.{{efn|Man o' War appears in American Pharoah's deep bloodline, through Fappiano (through Raise a Native, Dr. Fager and twice through Grand Splendor), Gana Facil (twice through War Relic and twice through War Admiral), El Gran Senor (twice through his dam Sex Appeal), Image of Reality (four times), Key to the Kingdom (through her dam Key Bridge), Her Native (through Pavot), Terlingua (twice through her dam Crimson Saint), Flying Paster (through his dam Procne), Sown (through her sire Grenfall), Exclusive Native (through Raise A Native), Minnetonka (through her dam Heliolight), and Tri Jet (through his sire Jester).<ref>{{cite web|title=Fappiano Horse Pedigree|url=http://www.pedigreequery.com/fappiano|website=www.pedigreequery.com|access-date=March 30, 2017|archive-date=May 10, 2017|archive-url=https://web.archive.org/web/20170510225744/http://www.pedigreequery.com/fappiano|url-status=live}}</ref>
<ref name=EquinelineElGranSenor>{{cite web|work=Equineline|title=El Gran Senor Pedigree|access-date=May 25, 2015|url=http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=841749&registry=T&horse_name=El%20Gran%20Senor&dam_name=Sex%20Appeal&foaling_year=1981&nicking_stats_indicator=Y|archive-date=September 24, 2015|archive-url=https://web.archive.org/web/20150924042416/http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=841749&registry=T&horse_name=El%20Gran%20Senor&dam_name=Sex%20Appeal&foaling_year=1981&nicking_stats_indicator=Y|url-status=live}}</ref>
<ref name=EquinelineTriJet>{{cite web|work=Equineline|title=Tri Jet Pedigree|access-date=May 25, 2015|url=http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=518149&registry=T&horse_name=Tri%20Jet&dam_name=Haze&foaling_year=1969&nicking_stats_indicator=Y|archive-date=March 21, 2017|archive-url=https://web.archive.org/web/20170321171235/http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=518149&registry=T&horse_name=Tri%20Jet&dam_name=Haze&foaling_year=1969&nicking_stats_indicator=Y|url-status=live}}</ref>
<ref name=EquinelineFappiano>{{cite web|title=Fappiano Pedigree|work=Equineline|url=http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=702640&registry=T&horse_name=Fappiano&dam_name=Killaloe&foaling_year=1977&nicking_stats_indicator=Y|access-date=May 25, 2015|archive-date=September 20, 2021|archive-url=https://web.archive.org/web/20210920015738/http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=702640&registry=T&horse_name=Fappiano&dam_name=Killaloe&foaling_year=1977&nicking_stats_indicator=Y|url-status=live}}</ref>
<ref name=EquinelineExclusiveNative>{{cite web|work=Equineline|title=Exclusive Native Pedigree|url=http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=150259&registry=T&horse_name=Exclusive%20Native&dam_name=Exclusive&foaling_year=1965&nicking_stats_indicator=Y|access-date=May 25, 2015|archive-date=September 24, 2015|archive-url=https://web.archive.org/web/20150924001721/http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=150259&registry=T&horse_name=Exclusive%20Native&dam_name=Exclusive&foaling_year=1965&nicking_stats_indicator=Y|url-status=live}}</ref>
<ref name=EquinelineTerlingua>{{cite web|title=Terlingua Pedigree|work=Equineline|access-date=May 25, 2015|url=http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=677983&registry=T&horse_name=Terlingua&dam_name=Crimson%20Saint&foaling_year=1976&nicking_stats_indicator=Y|archive-date=September 20, 2021|archive-url=https://web.archive.org/web/20210920015149/http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=677983&registry=T&horse_name=Terlingua&dam_name=Crimson%20Saint&foaling_year=1976&nicking_stats_indicator=Y|url-status=live}}</ref>
<ref name=EquinelineMinnetonka>{{cite web|work=Equineline|title=Minnetonka Pedigree|access-date=May 25, 2015|url=http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=312112&registry=T&horse_name=Minnetonka&dam_name=Heliolight&foaling_year=1967&nicking_stats_indicator=Y|archive-date=March 21, 2017|archive-url=https://web.archive.org/web/20170321170818/http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=312112&registry=T&horse_name=Minnetonka&dam_name=Heliolight&foaling_year=1967&nicking_stats_indicator=Y|url-status=live}}</ref>
<ref name=EquinelineKeytotheKingdom>{{cite web|work=Equineline|title=Key to the Kingdom Pedigree|access-date=May 25, 2015|url=http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=251955&registry=T&horse_name=Key%20to%20the%20Kingdom&dam_name=Key%20Bridge&foaling_year=1970&nicking_stats_indicator=Y|archive-date=March 21, 2017|archive-url=https://web.archive.org/web/20170321170055/http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=251955&registry=T&horse_name=Key%20to%20the%20Kingdom&dam_name=Key%20Bridge&foaling_year=1970&nicking_stats_indicator=Y|url-status=live}}</ref>
<ref name=EquinelineImageofReality>{{cite web|title=Image of Reality Pedigree|work=Equineline|url=http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=668896&registry=T&horse_name=Image%20of%20Reality&dam_name=Edee%27s%20Image&foaling_year=1976&nicking_stats_indicator=Y|access-date=May 25, 2015|archive-date=September 20, 2021|archive-url=https://web.archive.org/web/20210920011604/http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=668896&registry=T&horse_name=Image%20of%20Reality&dam_name=Edee%27s%20Image&foaling_year=1976&nicking_stats_indicator=Y|url-status=live}}</ref>
<ref name=EquinelineFlyingPaster>{{cite web|title=Flying Paster Pedigree|work=Equineline|url=http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=667413&registry=T&horse_name=Flying%20Paster&dam_name=Procne&foaling_year=1976&nicking_stats_indicator=Y|access-date=May 25, 2015|archive-date=September 20, 2021|archive-url=https://web.archive.org/web/20210920011009/http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=667413&registry=T&horse_name=Flying%20Paster&dam_name=Procne&foaling_year=1976&nicking_stats_indicator=Y|url-status=live}}</ref>
<ref name=EquinelineSown>{{cite web|title=Sown Pedigree|work=Equineline|url=http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=939132&registry=T&horse_name=Sown&dam_name=Bad%20Seed&foaling_year=1983&nicking_stats_indicator=Y|access-date=May 25, 2015|archive-date=September 20, 2021|archive-url=https://web.archive.org/web/20210920011158/http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=939132&registry=T&horse_name=Sown&dam_name=Bad%20Seed&foaling_year=1983&nicking_stats_indicator=Y|url-status=live}}</ref>
<ref name=EquinelineGanaFacil>{{cite web|work=Equineline|title=Gana Facil Pedigree|url=http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=838546&registry=T&horse_name=Gana%20Facil&dam_name=Charedi&foaling_year=1981&nicking_stats_indicator=Y|access-date=May 26, 2015|archive-date=September 24, 2015|archive-url=https://web.archive.org/web/20150924042402/http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=838546&registry=T&horse_name=Gana%20Facil&dam_name=Charedi&foaling_year=1981&nicking_stats_indicator=Y|url-status=live}}</ref>
<ref name=EquinelineEdeesImage>{{cite web|work=Equineline|url=http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=140007&registry=T&horse_name=Edee%27s%20Image&dam_name=Ortalan&foaling_year=1969&nicking_stats_indicator=Y|title=Edee's Image Pedigree|access-date=May 26, 2015|archive-date=September 20, 2021|archive-url=https://web.archive.org/web/20210920010619/http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=140007&registry=T&horse_name=Edee%27s%20Image&dam_name=Ortalan&foaling_year=1969&nicking_stats_indicator=Y|url-status=live}}</ref>
<ref name=EquinelineHerNative>{{cite web|title=Her Native Pedigree|work=Equineline|url=http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=211675&registry=T&horse_name=Her%20Native&dam_name=Little%20Blessing&foaling_year=1973&nicking_stats_indicator=Y|access-date=May 26, 2015|archive-date=September 24, 2015|archive-url=https://web.archive.org/web/20150924002042/http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=211675&registry=T&horse_name=Her%20Native&dam_name=Little%20Blessing&foaling_year=1973&nicking_stats_indicator=Y|url-status=live}}</ref>
<ref name=EquinelineCrimsonSaint>{{cite web|title=Crimson Saint Pedigree|url=http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=107041&registry=T&horse_name=Crimson%20Saint&dam_name=Bolero%20Rose&foaling_year=1969&nicking_stats_indicator=Y|work=Equineline|access-date=May 26, 2015|archive-date=September 24, 2015|archive-url=https://web.archive.org/web/20150924001626/http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=107041&registry=T&horse_name=Crimson%20Saint&dam_name=Bolero%20Rose&foaling_year=1969&nicking_stats_indicator=Y|url-status=live}}</ref>
<ref name=EquinelineProcne>{{cite web|title=Procne Pedigree|url=http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=395546&registry=T&horse_name=Procne&dam_name=*Philomela&foaling_year=1969&nicking_stats_indicator=Y|work=Equineline|access-date=May 26, 2015|archive-date=September 20, 2021|archive-url=https://web.archive.org/web/20210920023315/http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=395546&registry=T&horse_name=Procne&dam_name=*Philomela&foaling_year=1969&nicking_stats_indicator=Y|url-status=live}}</ref>
<ref name=EquinelineGrenfall>{{cite web|title=Grenfall Pedigree|url=http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=199246&registry=T&horse_name=Grenfall&dam_name=Primonetta&foaling_year=1968&nicking_stats_indicator=Y|work=Equineline|access-date=May 26, 2015|archive-date=September 24, 2015|archive-url=https://web.archive.org/web/20150924002000/http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=199246&registry=T&horse_name=Grenfall&dam_name=Primonetta&foaling_year=1968&nicking_stats_indicator=Y|url-status=live}}</ref>
<ref name=EquinelineJester>{{cite web|title=Jester Pedigree|url=http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=237806&registry=T&horse_name=Jester&dam_name=Golden%20Apple&foaling_year=1955&nicking_stats_indicator=Y|work=Equineline|access-date=May 26, 2015|archive-date=September 24, 2015|archive-url=https://web.archive.org/web/20150924002154/http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=237806&registry=T&horse_name=Jester&dam_name=Golden%20Apple&foaling_year=1955&nicking_stats_indicator=Y|url-status=live}}</ref>}}

==Death==
[[File:Man o ' War Statue.jpg|thumb|The ''Man o' War'' statue at the Kentucky Horse Park]]
Man o' War was retired from stud in 1943 after suffering a heart attack.<ref name=ACP /> He died on November 1, 1947, at age 30 of another apparent heart attack, a short time after Harbut died. His funeral was broadcast live on [[NBC Radio]]. Kentucky horseman Ira Drymon said, "He touched the imagination of men and they saw different things in him. But one thing they will all remember was that he brought exaltation into their hearts."<ref name=Livingston2017 /> An editorial in ''The New York Times'' stated: <blockquote>"No other horse ever won such fame as Man o' War. None was more beautiful, with lovelier lines of grace and power. None was more beloved by an admiring and faithful public. Few have lived so long. The American scene seems a little vacant with Man o' War gone to the Elysian Fields where all good horses go."<ref>{{cite web|title=MAN O' WAR|url=https://www.nytimes.com/1947/11/03/archives/man-o-war.html|website=The New York Times|access-date=March 29, 2017|date=November 3, 1947|archive-date=March 30, 2018|archive-url=https://web.archive.org/web/20180330005244/https://www.nytimes.com/1947/11/03/archives/man-o-war.html|url-status=live}}</ref></blockquote>

Man o' War was embalmed and buried in a casket lined with Riddle's black-and-gold racing silks.<ref>{{cite web|title=The Story of Man O' War|url=http://www.horsemanmagazine.com/2009/07/the-story-of-man-o-war/|website=www.horsemanmagazine.com|access-date=March 29, 2017|url-status=dead|archive-url=https://web.archive.org/web/20170330010526/http://www.horsemanmagazine.com/2009/07/the-story-of-man-o-war/|archive-date=March 30, 2017}}</ref> He was originally interred at Faraway Farm, but in the early 1970s, he was re-interred at a new burial site at the [[Kentucky Horse Park]], where his grave is marked with a statue by American sculptor [[Herbert Haseltine]].<ref name="Livingston2017" />

==Legacy==
Man o' War was inducted into the National Museum of Racing and Hall of Fame in 1957. In 1959, the [[Man o' War Stakes]] was created in his honor.<ref name=ACP /> In ''[[The Blood-Horse]]'' magazine 1999 ranking of the [[Blood-Horse magazine List of Top 100 Racehorses of the 20th Century|top 100 U.S. Thoroughbred champions of the 20th Century]], Man o' War was ranked No. 1.<ref name="secretariat"/> He was also ranked No. 1 by the Associated Press as the greatest horse of the 20th century in a separate poll.<ref>{{cite news |url=https://www.espn.com/sports/horse/news/story?id=247832 |work=espn.com |publisher=The Associated Press |title=Man o'War voted best of 20th Century |date=December 22, 1999 |archive-date=December 8, 2024 |access-date=July 21, 2024 |archive-url=https://web.archive.org/web/20241208055918/https://www.espn.com/sports/horse/news/story?id=247832 |url-status=live }}</ref> He was also ranked No. 1 greatest horse in racing history by ''Sports Illustrated'' (panel of 7) in 1992.<ref name="si.com">{{cite magazine | url=https://www.si.com/vault/issue/710861/12/2 | magazine=Sports Illustrated | first=William | last=Reed | title=Then & Now 30 Years Ago 'the Best I Ever Rode' | date=October 27, 1992 | access-date=October 24, 2016 | archive-date=October 1, 2017 | archive-url=https://web.archive.org/web/20171001165503/https://www.si.com/vault/issue/710861/12/2 | url-status=live }}</ref><ref name="Reed">{{cite news | url=https://www.si.com/vault/1992/10/27/127453/then--now-30-years-ago-the-best-i-ever-rode | work=si.com | first=William | last=Reed | title=Then & Now 30 Years Ago 'the Best I Ever Rode' | date=October 27, 1992 | archive-date=October 1, 2017 | access-date=December 9, 2017 | archive-url=https://web.archive.org/web/20171001165317/https://www.si.com/vault/1992/10/27/127453/then--now-30-years-ago-the-best-i-ever-rode | url-status=dead }}</ref><ref name=Livingston2017 /> ESPN ranked Man o' War as number 84 on their list of the top North American athletes of the 20th century, compiled for the ''[[SportsCentury]]'' documentary series.<ref name=ACP /> He was one of three racehorses on their list, along with [[Secretariat (horse)|Secretariat]] (34th) and [[Citation (horse)|Citation]] (97th).<ref>{{cite web |title=Top N. American athletes of the century |url=https://www.espn.com/sportscentury/athletes.html |website=ESPN.com |publisher=[[ESPN]] |access-date=3 May 2024 |archive-date=6 July 2017 |archive-url=https://web.archive.org/web/20170706141927/https://espn.go.com/sportscentury/athletes.html |url-status=live }}</ref>

There is a roadside historical marker at the location of his birthplace in Lexington (Nursery Stud), though the site has since been redeveloped. The stallion barn at Faraway Farm where he spent most of his life was renovated in the early 2000s - it is now part of Mt. Brilliant Farm.<ref name=Livingston2017 /> His stall door was loaned to the National Museum of Racing and Hall of Fame in Saratoga as part a special exhibit, "Man o' War at 100", that opened on March 29, 2017.<ref name="MoWat100">{{cite web|last1=Russo|first1=Nicole|title=Man o' War at 100: Champion's legacy echoes through century|url=http://www.drf.com/news/man-o-war-100-champions-legacy-echoes-through-century|website=Daily Racing Form|access-date=March 28, 2017|language=en|archive-date=March 29, 2017|archive-url=https://web.archive.org/web/20170329142110/http://www.drf.com/news/man-o-war-100-champions-legacy-echoes-through-century|url-status=live}}</ref>

Glen Riddle Farm in Maryland was home to Man o' War during the off seasons of his racing career. The land was redeveloped in the early 2000s as GlenRiddle, a [[gated community]] with two golf courses, one of which is named in Man o' War's honor. The barn in which Man o' War stayed was converted into the golf clubhouse.<ref>{{cite web|last1=Keyser|first1=Tom|title=For Glen Riddle, it's the finish line|url=https://www.baltimoresun.com/2004/04/03/for-glen-riddle-its-the-finish-line/|website=tribunedigital-baltimoresun|date=3 April 2004 |access-date=March 30, 2017|language=en|archive-date=2017-03-31|archive-url=https://web.archive.org/web/20170331114855/http://articles.baltimoresun.com/2004-04-03/sports/0404030119_1_war-admiral-riddle-farm|url-status=live}}</ref> In the 1950s, the Riddle estate sold the property Riddle had owned in [[Glen Riddle, Pennsylvania]], which became the [[Riddlewood, Pennsylvania|Riddlewood]] housing development. One of the roads in Riddlewood is named Man o' War Drive, another is War Admiral Lane.<ref>{{cite web|title=Middletown|url=https://justwestofphiladelphia.wordpress.com/category/suburban-philadelphia/middletown/|website=justwestofphiladelphia.wordpress.com|access-date=March 30, 2017|language=en|archive-date=March 31, 2017|archive-url=https://web.archive.org/web/20170331120915/https://justwestofphiladelphia.wordpress.com/category/suburban-philadelphia/middletown/|url-status=live}}</ref><ref>{{cite web|title=Neighborhood Map Riddlewood Middletown Township Delaware County Pennsylvania|url=http://www.livingplaces.com/PA/Delaware_County/Middletown_Township/Riddlewood_Map.html|website=www.livingplaces.com|access-date=March 30, 2017|archive-date=March 31, 2017|archive-url=https://web.archive.org/web/20170331205020/http://www.livingplaces.com/PA/Delaware_County/Middletown_Township/Riddlewood_Map.html|url-status=live}}</ref> [[Man o' War Boulevard]], a major [[Arterial road|arterial]] that circles to the south of Lexington, is also named in the horse's honor. [[Central of Georgia Railway]] once ran a Man o' War passenger train between Atlanta and Columbus.<ref>{{cite book|last1=Cox|first1=Jim|title=Rails Across Dixie: A History of Passenger Trains in the American South|date=17 November 2010|publisher=McFarland|isbn=9780786461752|page=66|url=https://books.google.com/books?id=gY4FgCKdb7UC&q=man+o%27+war+boulevard+history&pg=PA66|language=en}}</ref>

===In books and film===
He has been the subject of several biographies. The first, titled ''Big Red'', was by [[Clarence William Anderson|C. W. Anderson]] and was published in 1943. ''Man o' War'', by Page Cooper and [[Roger Treat]], was published in 1950, and is a classic of its kind.  [[Walter Farley]], author of ''[[The Black Stallion]]'' series, also wrote a slightly fictional biography of Man o' War in 1962. In 2000, [[Edward L. Bowen]] wrote a  biography called ''Man o' War: Thoroughbred Legends'' from [[Eclipse Press]]. In 2006, Dorothy Ours wrote a new, extensively sourced biography titled ''Man o' War: A Legend Like Lightning''. Man o' War is also featured in several books on Thoroughbred breeding, including [[Avalyn Hunter|Avalyn Hunter's]] ''American Classic Pedigrees (1914–2002)''.<ref name=ACP />

In 1925, Man o' War was seen in the film ''[[Kentucky Pride]]'' which was directed by [[John Ford]].<ref>{{Cite web|url=https://www.silentera.com/PSFL/data/K/KentuckyPride1925.html|title=Silent Era : Progressive Silent Film List|website=www.silentera.com|access-date=2025-11-10|archive-date=2024-11-27|archive-url=https://web.archive.org/web/20241127165144/http://www.silentera.com/PSFL/data/K/KentuckyPride1925.html|url-status=live}}</ref>

===Cultural references===
In [[Sterling A. Brown]]'s poem about Kentucky and an African American in pre-[[Civil Rights]] America, "Kentucky Blues" from ''Southern Road'', a reference is made to Man o' War. The poem discusses Thoroughbred horses and other characteristics attributed to the state.<ref>{{cite book|last1=Tidwell|first1=John Edgar|last2=Tracy|first2=Steven C.|title=After Winter: The Art and Life of Sterling A. Brown|date=2 February 2009|publisher=Oxford University Press|isbn=9780199710898|pages=32, 323|url=https://books.google.com/books?id=hRk02ccdrMIC&pg=PA323|language=en}}</ref>

According to Joey DeMaio, the heavy metal band [[Manowar]] was named after the horse.<ref>[[Michael Custodis]], chapter: Manowar und das Erbe Richard Wagners, in: Klassische Musik heute. Eine Spurensuche in der Rockmusik, Bielefeld transcript-Verlag 2009 {{ISBN|978-3-8376-1249-3}}.</ref>

In the 1970 motion picture ''[[M*A*S*H (film)|M*A*S*H]]'', the character Trapper John makes the apocryphal claim that a necropsy performed upon Man o' War following his death revealed that he was a homosexual horse, despite his prolific breeding history.

The song "Action Man" by the band [[Widespread Panic]] tells the story of Man o' War. The song references his Sire and Dam, [[Fair Play (horse)|Fair Play]] and [[Mahubah]], as well as his offspring [[War Admiral]].

== Sire line tree ==
{{tree list}}
*'''Man o' War'''<!--b. 1917--><ref>{{Cite web|url=http://www.bloodlines.net/TB/Sirelines/Matchem.htm|title=Matchem Sire Line|website=www.bloodlines.net|access-date=2025-09-01|archive-date=2021-04-20|archive-url=https://web.archive.org/web/20210420025900/http://www.bloodlines.net/TB/Sirelines/Matchem.htm|url-status=dead}}</ref><ref>{{Cite web|url=https://www.tbheritage.com/HistoricSires/JumpSires/JumpsiresGA.html|title=Jumper Sires Godolphin Arabian Line|website=www.tbheritage.com|access-date=2024-05-22|archive-date=2024-04-19|archive-url=https://web.archive.org/web/20240419185744/http://www.tbheritage.com/HistoricSires/JumpSires/JumpsiresGA.html|url-status=live}}</ref><ref>{{Cite web|url=https://www.americanclassicpedigrees.com/man-o-war.html|title=Man o' War (horse)|website=American Classic Pedigrees|access-date=2025-11-10|archive-date=2025-08-19|archive-url=https://web.archive.org/web/20250819064945/https://www.americanclassicpedigrees.com/man-o-war.html|url-status=live}}</ref><ref>{{Cite web|url=https://www.michaelchurchracingbooks.com/the-godolphin-arabian/|title=Michael Church Racing Books|first=Ed|last=Gillett|date=October 15, 2019|access-date=August 19, 2023|archive-date=August 19, 2023|archive-url=https://web.archive.org/web/20230819030806/https://www.michaelchurchracingbooks.com/the-godolphin-arabian/|url-status=live}}</ref>
**Annapolis<!--b. 1926-->
***Mercator<!--b. 1945-->
**[[American Flag (horse)|American Flag]]<!--b. 1922--><ref name="American Flag">{{Cite web|url=https://www.americanclassicpedigrees.com/american-flag.html|title=American Flag (horse)|website=American Classic Pedigrees|access-date=2025-11-10|archive-date=2025-07-16|archive-url=https://web.archive.org/web/20250716084021/https://www.americanclassicpedigrees.com/american-flag.html|url-status=live}}</ref>
***Gusto<!--b. 1929-->
**Gun Boat<!--b. 1922--><ref name="Crusader"/>
**[[Crusader (horse)|Crusader]]<!--b. 1923--><ref name="Crusader">{{Cite web|url=https://www.americanclassicpedigrees.com/crusader.html|title=Crusader (horse)|website=American Classic Pedigrees}}</ref>
***Crossbow II<!--b. 1933-->
***Royal Crusader<!--b. 1937-->
**Mars<!--b. 1923-->
**[[Scapa Flow (horse)|Scapa Flow]]<!--b. 1924-->
**[[Clyde Van Dusen (horse)|Clyde Van Dusen]]<!--b. 1926-->
**[[Hard Tack (horse)|Hard Tack]]<!--b. 1926-->
***[[Seabiscuit]]<!--b. 1933--><ref>{{Cite web|url=https://www.americanclassicpedigrees.com/seabiscuit.html|title=Seabiscuit (horse)|website=American Classic Pedigrees|access-date=2025-11-10|archive-date=2025-05-23|archive-url=https://web.archive.org/web/20250523182517/https://www.americanclassicpedigrees.com/seabiscuit.html|url-status=live}}</ref>
****[[Sea Sovereign]]<!--b. 1942-->
****Sea Swallow<!--b. 1942-->
**[[Battleship (horse)|Battleship]]<!--b. 1927--><ref>{{Cite web|url=http://www.racingmuseum.org/hall-of-fame/horses-view.asp?varID=25|title=National Museum of Racing, Hall of Fame, Thoroughbred Horses|website=www.racingmuseum.org|access-date=2023-05-19|archive-date=2011-06-22|archive-url=https://web.archive.org/web/20110622070400/http://www.racingmuseum.org/hall-of-fame/horses-view.asp?varID=25|url-status=live}}</ref><ref>{{Cite web|url=http://www.tbheritage.com/Portraits/Battleship.html|title=Battleship|website=www.tbheritage.com|access-date=2023-05-19|archive-date=2023-05-19|archive-url=https://web.archive.org/web/20230519223852/http://www.tbheritage.com/Portraits/Battleship.html|url-status=live}}</ref>
***Floating Isle<!--b. 1940-->
***Navigate<!--b. 1941-->
***War Battle<!--b. 1941-->
***Tide Rips<!--b. 1944-->
***Navy Gun<!--b. 1945-->
***Sea Legs<!--b. 1946-->
***Eolus<!--b. 1947-->
***Cap-A-Pie<!--b. 1949-->
***Mighty Mo<!--b. 1949-->
***Shipboard<!--b. 1950-->
**Fleet Flag<!--b. 1928--><ref name="American Flag"/>
**Blockade<!--b. 1929-->
**Ship Executive<!--b. 1932--><ref name="American Flag"/>
**Tsukitomo<!--b. 1932-->
**[[War Admiral]]<!--b. 1934--><ref>{{Cite web|url=https://www.americanclassicpedigrees.com/war-admiral.html|title=War Admiral (horse)|website=American Classic Pedigrees|access-date=2025-11-10|archive-date=2025-07-12|archive-url=https://web.archive.org/web/20250712102211/https://www.americanclassicpedigrees.com/war-admiral.html|url-status=live}}</ref>
***[[Blue Peter (American horse)|Blue Peter]]<!--b. 1946-->
***Mr Busher<!--b. 1946-->
***Cold Command<!--b. 1949-->
***Navy Page<!--b. 1950-->
***Admiral Vee<!--b. 1952-->
**Great War<!--b. 1929-->
**[[War Relic]]<!--b. 1938--><ref>{{Cite web|url=https://www.americanclassicpedigrees.com/war-relic.html|title=War Relic (horse)|website=American Classic Pedigrees|access-date=2025-11-10|archive-date=2025-05-22|archive-url=https://web.archive.org/web/20250522230828/https://www.americanclassicpedigrees.com/war-relic.html|url-status=live}}</ref><ref>{{Cite web|url=https://www.sport-horse-breeder.com/war-relic.html|title=War Relic|website=www.sport-horse-breeder.com|access-date=2024-05-22|archive-date=2024-05-22|archive-url=https://web.archive.org/web/20240522185838/https://www.sport-horse-breeder.com/war-relic.html|url-status=live}}</ref>
***Relic<!--b. 1945-->
****Buisson Ardent<!--b. 1953-->
*****Roan Rocket<!--b. 1961-->
****El Relicario<!--b. 1953-->
*****UN Prince<!--b. 1960-->
****[[Prix Daphnis#Earlier winners|Polic]]<!--b. 1953-->
*****[[King George Stakes#Earlier winners|Polyfoto]]<!--b. 1962-->
****Mystic II<!--b. 1954-->
*****[[Babamist]]<!--b. 1969-->
*****Bewley's Hill<!--b. 1977-->
*****Freeman's Hill<!--b. 1978-->
****[[Olden Times]]<!--b. 1958-->
*****[[Roving Boy]]<!--b. 1980-->
****Pericles<!--b. 1962-->
****Pieces of Eight<!--b. 1963-->
*****[[Premio Federico Tesio#Earlier winners|Stateff]]<!--b. 1974-->
***Battlefield<!--b. 1948-->
***Intent<!--b. 1948--><ref>{{Cite web|url=https://www.americanclassicpedigrees.com/intent.html|title=Intent (horse)|website=American Classic Pedigrees|access-date=2025-11-10|archive-date=2025-08-11|archive-url=https://web.archive.org/web/20250811211659/https://www.americanclassicpedigrees.com/intent.html|url-status=live}}</ref>
****[[Intentionally (horse)|Intentionally]]<!--b. 1956--><ref>{{Cite web|url=https://www.americanclassicpedigrees.com/intentionally.html|title=Intentionally (horse)|website=American Classic Pedigrees|access-date=2025-11-10|archive-date=2025-05-17|archive-url=https://web.archive.org/web/20250517025456/https://www.americanclassicpedigrees.com/intentionally.html|url-status=live}}</ref>
*****[[In Reality]]<!--b. 1964--><ref>{{Cite web|url=https://www.americanclassicpedigrees.com/in-reality.html|title=In Reality (horse)|website=American Classic Pedigrees|access-date=2025-11-10|archive-date=2025-09-06|archive-url=https://web.archive.org/web/20250906033634/https://www.americanclassicpedigrees.com/in-reality.html|url-status=live}}</ref>
*****[[Tentam]]<!--b. 1969--><ref>{{Cite web|url=https://www.americanclassicpedigrees.com/tentam.html|title=Tentam (horse)|website=American Classic Pedigrees|access-date=2025-11-10|archive-date=2025-06-24|archive-url=https://web.archive.org/web/20250624045446/https://www.americanclassicpedigrees.com/tentam.html|url-status=live}}</ref>
*****Group Plan<!--b. 1970-->
***Missile<!--b. 1954-->
{{tree list/end}}

==Pedigree==
Man o' War's grandsire [[Hastings (horse)|Hastings]] was purchased by August Belmont Jr. as a two-year-old and won the Belmont Stakes for him in 1896. Hastings had a notoriously vicious temperament that he tended to pass on to his offspring in varying degrees.<ref>{{cite web|title=Hastings (horse)|url=http://www.americanclassicpedigrees.com/hastings.html|website=American Classic Pedigrees|access-date=March 30, 2017|archive-date=March 30, 2017|archive-url=https://web.archive.org/web/20170330181442/http://www.americanclassicpedigrees.com/hastings.html|url-status=live}}</ref> The mare Fairy Gold, a stakes-winning daughter of [[Epsom Derby]] winner [[Bend Or]], was imported by Belmont to America and bred to Hastings in 1904. The resulting foal was Fair Play, who was one of the best racehorses of his year and even better as a stallion, leading the American sire list three times (1920, 1924 and 1927). Fair Play inherited a difficult temperament from Hastings, and his disposition was completely soured after an unsuccessful period spent racing in England. In addition to Man o' War, he also sired Hall of Famer [[Discovery (horse)|Discovery]].<ref name="FairPlay" />

Belmont Jr. also bred the mare Mahubah, who raced only five times with one win. She was the daughter of [[Rock Sand]], who was imported by Belmont to the United States after winning the English Triple Crown. Mahubah produced five foals, all of them by Fair Play, including Man o' War and stakes winner My Play. Mahubah is also the fourth dam of American Triple Crown winner [[Assault (horse)|Assault]].<ref name=Mahubah />

{{Pedigree|
name = Man o' War, chestnut horse, foaled in 1917<ref>{{cite web |url=http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=296356&registry=T&horse_name=Man%20o%27%20War&dam_name=Mahubah&foaling_year=1917&nicking_stats_indicator=Y |title=Man o' War pedigree |publisher=equineline.com |access-date=August 5, 2012 |archive-date=February 27, 2016 |archive-url=https://web.archive.org/web/20160227131533/http://www.equineline.com/Free-5X-Pedigree.cfm?page_state=ORDER_AND_CONFIRM&reference_number=296356&registry=T&horse_name=Man%20o%27%20War&dam_name=Mahubah&foaling_year=1917&nicking_stats_indicator=Y |url-status=live }}</ref>|
f = [[Fair Play (horse)|Fair Play]]<br />chestnut 1905|
ff = [[Hastings (horse)|Hastings]]<br />brown 1893|
fff = [[Spendthrift (horse)|Spendthrift]]<br />chestnut 1876|
ffff = *[[Australian (horse)|Australian]]|
fffm = Aerolite|
ffm = *Cinderella<br />bay 1888|
ffmf = Tomahawk (GB)|
ffmm = Manna (GB)|
fm = *Fairy Gold<br />chestnut 1896|
fmf = [[Bend Or]] (GB)<br />chestnut 1877|
fmff = [[Doncaster (horse)|Doncaster]] (GB)|
fmfm = Rouge Rose (GB)|
fmm = Dame Masham (GB)<br />brown 1889|
fmmf = [[Galliard (horse)|Galliard]] (GB)|
fmmm = Pauline (GB)|
m = [[Mahubah]]<br />bay 1910|
mf = *[[Rock Sand]]<br />brown 1900|
mff = [[Sainfoin (horse)|Sainfoin]] (GB)<br />chestnut 1887|
mfff = [[Springfield (horse)|Springfield]] (GB)|
mffm = Sanda (GB)|
mfm = Roquebrune (GB)<br />brown 1893|
mfmf = [[St. Simon (horse)|St. Simon]] (GB)|
mfmm = St. Marguerite (GB)|
mm = *Merry Token<br />bay 1891|
mmf = [[Merry Hampton]] (GB)<br />brown 1884|
mmff = [[Hampton (horse)|Hampton]] (GB)|
mmfm = Doll Tearsheet (GB)|
mmm = Mizpah<br />bay 1880 (GB)|
mmmf = Macgregor (GB)|
mmmm = Underhand Mare (GB) (Family: 4-c)<ref>{{cite web |url=http://www.bloodlines.net/TB/Families/Family4c.htm |title=Maniac - Family 4-c |publisher=Bloodlines.net |access-date=August 5, 2012 |archive-date=August 4, 2015 |archive-url=https://web.archive.org/web/20150804073958/http://www.bloodlines.net/TB/Families/Family4c.htm |url-status=dead }}</ref>|
}}

An asterisk before a horse's name means the horse was imported to the United States.

Through his sire, Man o' War is a descendant of the first English Triple Crown champion, [[West Australian (horse)|West Australian]]. This male line traces to the [[Godolphin Arabian]] (Man o' War is 14 generations removed from the [[Godolphin Arabian]]).<ref>{{cite web|title=Godolphin Arabian Line|url=http://www.tbheritage.com/HistoricSires/SireLineschts/SireLineGA.html|website=www.tbheritage.com|access-date=April 26, 2020|archive-date=February 18, 2020|archive-url=https://web.archive.org/web/20200218062035/http://www.tbheritage.com/HistoricSires/SireLineschts/SireLineGA.html|url-status=live}}</ref>

==See also==
{{Portal|Horses|Sports}}
* [[List of leading Thoroughbred racehorses]]
* [[List of racehorses]]

==Notes==
{{notelist}}

==References==
{{Reflist|2}}

== Bibliography ==
*{{Citation |author-link=Edward L. Bowen |last=Bowen |first=Edward L. |year=2000 |title=Man o' War: Thoroughbred Legends |publisher=[[Eclipse Press]] |location=Lexington, KY |isbn=1-58150-040-8 }}.
*{{Citation |last1=Cooper |first1=Page |first2=Roger L. |last2=Treat |name-list-style=amp |orig-year=1950 |year=2004 |title=Man o' War |edition=Reprinted |publisher=Westholme Publishing |location=Yardley |isbn=1-59416-005-8 }}.
*{{Citation |last1=Hewitt |first1=A. S. |name-list-style=amp |year=1982 |title=The Great Breeders and Their Methods |publisher=Thoroughbred Publishers |location=Lexington, KY }}.
*{{Citation |last=Ours |first=Dorothy |year=2006 |title=Man o' War: A Legend Like Lightning |publisher=[[St. Martin's Press]] |location=New York |isbn=0-312-34099-0 |url-access=registration |url=https://archive.org/details/manowar00doro }}.

==External links==
{{commons category|Man O' War}}
* [https://www.youtube.com/watch?v=RQX0LH1HsQg Funeral oration, plus archival photos on YouTube]
*[https://www.espn.com/sportscentury/features/00016132.html Man o' War came close to perfection]
*[https://web.archive.org/web/20160426072437/http://man-o-war.info/ Man o' War - Racing Icon]
*[http://www.secondrunning.com/Man%20o'%20War.htm Detailed race record for Man o' War at www.secondrunning.com] {{Webarchive|url=https://web.archive.org/web/20190608112645/http://secondrunning.com/Man%20o%27%20War.htm |date=2019-06-08 }}
*[https://www.bloodhorse.com/horse-racing/slideshows/21006/man-o-war-a-photographic-tribute Man o' War: A Photographic Tribute at bloodhorse.com]

{{Preakness Stakes Winners}}
{{Belmont Stakes Winners}}
{{American Horse of the Year winners}}
{{DEFAULTSORT:Man O' War}}
[[Category:1917 racehorse births]]
[[Category:1947 racehorse deaths]]
[[Category:American Champion racehorses]]
[[Category:American Thoroughbred Horse of the Year]]
[[Category:Belmont family]]
[[Category:Belmont Stakes winners]]
[[Category:Chefs-de-Race]]
[[Category:Godolphin Arabian sire line]]
[[Category:Horse monuments]]
[[Category:Horse racing track record setters]]
[[Category:Preakness Stakes winners]]
[[Category:Racehorses bred in Kentucky]]
[[Category:Racehorses trained in the United States]]
[[Category:Thoroughbred family 4-c]]
[[Category:United States Champion Thoroughbred Sires]]
[[Category:United States Thoroughbred Racing Hall of Fame inductees]]