View source for Ivo Karlović

{{Short description|Croatian tennis player (born 1979)}}
{{Use dmy dates|date=October 2020}}
{{Infobox tennis biography
|name = Ivo Karlović
|image = Karlovic WM18 (5) (30063301198).jpg
|caption = Karlović at the [[2018 Wimbledon Championships]]
|country = {{CRO}}
|residence =[[Grand Bahama]], [[The Bahamas]]
|birth_date = {{birth date and age|df=yes|1979|02|28}}
|birth_place = [[Zagreb]], [[SR Croatia]], [[SFR Yugoslavia]]
|height = 2.11 m<ref>{{cite web|url=http://www.atpworldtour.com/News/Tennis/2013/10/42/Moscow-Karlovic-height.aspx|work=[[Association of Tennis Professionals|ATP]]|title=Ivo Karlovic: A Game of Inches|date=18 November 2013|access-date=18 November 2013}}</ref>
|turnedpro = 2000
|retired = 2024 (last match 2021)<ref> {{Cite web|url=https://www.tennis.com/news/articles/hard-serving-ivo-karlovic-officially-announces-his-retirement-from-pro-tennis-at-age-44|title=Hard-serving Ivo Karlovic, 44, officially announces his retirement from tennis|date=21 February 2024}}</ref>
|plays = Right-handed (one-handed backhand)
|careerprizemoney = [[US$]]10,160,232<ref name="career-prize-money-leaders">{{cite web |title=ATP Prize Money Leaders|url=http://www.protennislive.com/posting/ramr/career_prize.pdf}}</ref>
|singlesrecord = {{tennis record|won=371|lost=346|details=in [[ATP Tour]] and [[Grand Slam (tennis)|Grand Slam]] main draw matches, and in [[Davis Cup]]}}
|singlestitles = 8
|highestsinglesranking = No. 14 (18 August 2008)
|AustralianOpenresult = 4R ([[2010 Australian Open – Men's singles|2010]])
|FrenchOpenresult = 3R ([[2014 French Open – Men's singles|2014]], [[2016 French Open – Men's singles|2016]])
|Wimbledonresult = QF ([[2009 Wimbledon Championships – Men's singles|2009]])
|USOpenresult = 4R ([[2016 US Open – Men's singles|2016]])
|Othertournaments = yes
|Olympicsresult = 3R ([[Tennis at the 2004 Summer Olympics – Men's singles|2004]])
|doublesrecord = {{tennis record|won=91|lost=109|details=in [[ATP Tour]] and [[Grand Slam (tennis)|Grand Slam]] main draw matches, and in [[Davis Cup]]}}
|doublestitles = 2
|highestdoublesranking = No. 44 (10 April 2006)
|AustralianOpenDoublesresult = SF ([[2010 Australian Open – Men's doubles|2010]])
|FrenchOpenDoublesresult = 2R ([[2004 French Open – Men's doubles|2004]], [[2011 French Open – Men's doubles|2011]])
|WimbledonDoublesresult = 3R ([[2005 Wimbledon Championships – Men's doubles|2005]])
|USOpenDoublesresult = 2R ([[2004 US Open – Men's doubles|2004]], [[2007 US Open – Men's doubles|2007]], [[2011 US Open – Men's doubles|2011]])
|FrenchOpenMixedresult=1R ([[2015 French Open – Mixed doubles|2015]])
|Team = yes
|DavisCupresult = '''W''' ([[2005 Davis Cup|2005]])
}}

'''Ivo Karlović''' ({{IPA|hr|ǐːʋo kâːrloʋitɕ|hr}};<ref>{{cite web|url=http://hjp.znanje.hr/index.php?show=search_by_id&id=fVhlWRI%3D|title=Ìvan|quote=Ívo|website=Hrvatski jezični portal|access-date=2018-03-17|language=sh}}</ref><ref>{{cite web|url=http://hjp.znanje.hr/index.php?show=search_by_id&id=el5uXBY%3D|title=Kȃrlo|quote=Kȃrlović|website=Hrvatski jezični portal|access-date=2018-03-17|language=sh}}</ref> born 28 February 1979) is a Croatian former professional [[tennis]] player. His height of 211&nbsp;cm (6&nbsp;ft 11 in) makes him the joint-tallest ranked tennis player in history (along with [[Reilly Opelka]]).<ref name="ATP World Tour">{{Cite web|url=http://www.atptour.com/en/players|title=Players &#124; ATP Tour &#124; Tennis|website=ATP Tour}}</ref> He won eight [[ATP Tour]] singles titles between 2007 and 2016. He was a [[serve-and-volley]]er<ref>{{cite web | url=https://www.tennisnet.com/en/news/serve-and-volley-world-rankings-pierre-hugues-herbert-leads-maxime-cressy-soon-number-1 | title=Serve and volley world rankings: Pierre-Hugues Herbert leads, Maxime Cressy soon number 1? | date=20 October 2021 }}</ref><ref>{{cite web | url=https://bleacherreport.com/articles/612431-pete-sampras-and-the-top-25-servers-in-the-history-of-mens-tennis | title=Pete Sampras and the Top 25 Servers in the History of Men's Tennis | website=[[Bleacher Report]] }}</ref> and officially held the record for the [[Fastest recorded tennis serves|fastest serve recorded in professional tennis]], measured at 251&nbsp;km/h (156&nbsp;mph),<ref>{{cite web | url=http://tennisinstruction.com/ivo-karlovic-serve-technique/ | title=Analysis of the Ivo Karlovic Serve Technique | date=15 January 2021 }}</ref> before being officially surpassed by [[John Isner]] in 2016.<ref name="atpworldtour.com">{{Cite web|url=http://www.atptour.com/en/news|title=News &#124; ATP Tour &#124; Tennis|website=ATP Tour}}</ref><ref>{{cite news|url=https://www.foxsports.com.au/tennis/davis-cup-2016-usas-john-isner-breaks-serve-speed-record-with-253kmh-bomb/news-story/36019d7f91f8276845e70616861ee8a2|title=Davis Cup 2016: John Isner breaks serve speed record with 253km/h bomb|date=6 March 2016|access-date=29 August 2019}}</ref> He was considered one of the best [[Serve (tennis)|servers]] on tour,<ref>{{cite web|url=http://www.ontennis.com/content/ivo-karlovic|title=Ivo Karlovic|publisher=ontennis.com|url-status=dead|archiveurl=https://web.archive.org/web/20100211094302/http://www.ontennis.com/content/ivo-karlovic|archivedate=11 February 2010}}</ref> and held the record for career [[Ace (tennis)|aces]] from 1991 onwards with 13,728 (not including Davis Cup) before the record was broken by Isner on July 1 2022.<ref>{{Cite web|url=http://www.atptour.com/en/stats/aces|title=Aces &#124; ATP Tour &#124; Tennis|website=ATP Tour}}</ref><ref>[http://www.atpworldtour.com/en/news/karlovic-becomes-new-ace-king-2015 Karlovic Sets All-Times Aces Record] Retrieved 27 May 2016.</ref> This makes him one of only five players since 1991 to surpass 10,000 aces.<ref>{{cite web|url=http://www.atpworldtour.com/en/news/montreal-2015-tuesday-karlovic|title=Karlovic Cracks 10,000th Ace|date=12 August 2015|access-date=1 September 2015}}</ref> His [[Human height|height]] enabled him to serve with high speed and unique trajectory.<ref>{{Cite web|url=https://tennisplanet.wordpress.com/2008/07/31/federer%e2%80%99s-post-match-interview-karlovic-from-bigfish-thanks/|title=Federer's Post Match Interview: Karlovic. From bigfish. Thanks.|date=1 August 2008}}</ref><ref>{{Cite web|url=https://www.washingtontimes.com/news/2007/aug/5/roddick-handles-karlovic-serve/|title=Roddick handles Karlovic, serve|website=The Washington Times}}</ref><ref>{{Cite web|url=http://www.tennis.com/features/general/features.aspx?id=151846|archiveurl=https://web.archive.org/web/20081204031236/http://www.tennis.com/features/general/features.aspx?id=151846|url-status=dead|title=Tom Perrotta – Ivo has the best serve|archivedate=4 December 2008}}</ref>
{{TOC limit|2}}

==Career==
===1995–1997: Juniors===
Karlović played his first junior match in April 1995 at the age of 16 at a grade 3 tournament in [[Croatia]]. He played only eight tournament throughout his junior career (four singles and four doubles). In singles, he defeated a 15-year-old [[Marat Safin]] at the [[Junior Davis Cup and Junior Billie Jean King Cup|1995 Junior Davis Cup]]. In doubles, he was known for partnering future world No. 3 [[Ivan Ljubičić]] on numerous occasions.

Karlović ended his junior career with no ranking in both singles or doubles. He had an overall win–loss record of 3–5 in singles and 5–3 in doubles.<ref>{{cite news |title=Ivo Karlovic junior profile |url=https://www.itftennis.com/en/players/ivo-karlovic/800192879/cro/jt/s/overview/ |access-date=10 October 2021 |publisher=ITF Tennis}}</ref>

===1998–2004: Pro Beginnings===
Although not turning pro until 2000 at the age of 21, Karlović played his first ITF futures event in June 1998 and made two finals in August 1998 and September 1999, losing both. He played his first Challenger event in December 1999.

[[File:Ivo karlovic.jpg|thumb|175px|Karlović at the [[2004 US Open (tennis)|2004 US Open]]]]
Karlović debuted for the [[Croatia Davis Cup team|Croatian Davis Cup team]] in 2000 against [[Ireland Davis Cup team|Ireland]], where he won the [[dead rubber]]. Karlović appeared in a starting line-up for the first time in 2002 against [[Argentina Davis Cup team|Argentina]] in Buenos Aires, but he lost to [[Juan Ignacio Chela]] in the second rubber and to [[Gastón Gaudio]] in the fifth and decisive rubber. He has posted a 4–2 career record (2–2 in singles) in three ties since 2000.

Karlović caused a major upset at [[2003 Wimbledon Championships|Wimbledon]] when he beat defending champion [[Lleyton Hewitt]] in his first match in a [[Grand Slam (tennis)|Grand Slam]] tournament. As of 2015, Karlović remains the only player in Open tennis history, and only the second player after [[Charlie Pasarell]], to defeat the defending Wimbledon men's singles champion in the first round.<ref>{{cite news|url=https://news.bbc.co.uk/sport1/hi/tennis/wimbledon_2003/3013820.stm|work=BBC News|title=Hewitt crashes out|date=23 June 2003|access-date=23 June 2003}}</ref> He finished the 2003&nbsp;year in the top 100 and as the Croatian No. 3, behind [[Ivan Ljubičić]] and [[Mario Ančić]]. He also averaged an ATP-best of 17.6 aces per match. He continued his success during the 2004 season, winning at [[Calabasas, California]]. He reached the round of sixteen in several tournaments, including Wimbledon.

===2005: First ATP final===
In 2005, Karlović reached his first ATP final at the [[Queen's Club Championships]], defeating [[Lleyton Hewitt]] and [[Thomas Johansson]] along the way. In the final he lost to [[Andy Roddick]]. There were no breaks of serve in the match. Afterwards, Roddick said Karlović's serve is "probably the biggest weapon in tennis... you don't really get a feel for it unless you are on the other side. It was not fun at times."<ref>{{Cite news|url=https://www.nytimes.com/2005/06/13/sports/tennis-roundup-federer-wins-20th-straight-atp-final.html|title=TENNIS: ROUNDUP; Federer Wins 20th Straight ATP Final|newspaper=The New York Times|agency=Associated Press|date=13 June 2005}}</ref>

At the [[2005 US Open (tennis)|2005 US Open]], Karlović lost to eventual runner-up [[Andre Agassi]] in three tiebreakers. On 19 October 2005, he finally defeated Roddick in the [[Madrid Open (tennis)|Madrid Masters]] event. In November 2005, he was a member of the [[Croatia Davis Cup team|Croatian team]] that won the [[Davis Cup]]. He did not play in the finals, but played in a semifinal dead rubber.<ref>{{cite web|title=Davis Cup player profile – Ivo Karlovic|url=https://www.daviscup.com/en/players/player.aspx?id=800192879|publisher=[[International Tennis Federation]] (ITF)}}</ref>

===2006: Breaking into the top 50 in singles and doubles===
On 26 February 2006, he won his first ATP Doubles Tournament with South African [[Chris Haggard]], beating [[James Blake (tennis)|James Blake]] and [[Mardy Fish]] in the [[2006 Regions Morgan Keegan Championships and the Cellular South Cup]], Memphis, USA. On 27 February, he reached a career high of No. 47 in doubles and on 8 May he also reached the top 50 in singles.

===2007: First ATP title and breaking top 30===
Karlović and [[Roger Federer]] were the only players who won titles on three different [[Tennis court|surfaces]] during the [[2007 ATP Tour|2007 season]].

At age 28, he won his first ATP singles title at the 2007 [[U.S. Men's Clay Court Championships]] in [[Houston]], Texas, defeating [[Mariano Zabaleta]] in the final. On 29 May 2007 at the [[2007 French Open|French Open]], he defeated eighth seed [[James Blake (tennis)|James Blake]] in the first round. In the next round he lost to [[Jonas Björkman]] in five sets.

On 23 June 2007, he won his second title of the year and his career at [[Nottingham Open|Nottingham]], the last grass tune-up before Wimbledon, defeating seventh seed [[Stanislas Wawrinka]], [[Gilles Simon]], [[Juan Martín del Potro]], second seed [[Dmitry Tursunov]] (a match played on indoor hard courts due to torrential rain), and [[Arnaud Clément]]. Despite a first-round loss at Wimbledon, he rose to No. 40, making his top-40 debut.

On 14 October 2007, he won his third title of the year by taking the [[Stockholm Open]], defeating former Australian Open champion [[Thomas Johansson]] in three sets in the final.<ref>{{cite news|url=https://www.nytimes.com/2007/10/15/sports/tennis/15sportsbriefs-atp.html?ref=topics&_r=0|work=The New York Times|title=Karlovic Wins Behind Serve|date=14 October 2007|access-date=15 October 2007}}</ref> Earlier, Karlović had yet again met Frenchman [[Arnaud Clément]] in his quarterfinal, the pair having met five times that year alone, including in the final of Nottingham, where Karlović secured his second career title. Karlović edged past his rival after saving a match point in the final-set tiebreak, and then went on to defeat German No. 1 [[Tommy Haas]] in the semifinals.

===2008: Fourth ATP title and breaking top 15===
At the [[2008 Australian Open]], Karlović entered the men's doubles tournament with {{convert|6|ft|9|in|m|abbr=on}} [[John Isner]], making them the tallest doubles pair in history. Despite losing in the first round, Karlović said "It was a lot of fun. We will win together next time."<ref>{{cite news|url=https://news.bbc.co.uk/sport2/hi/tennis/7190961.stm|work=BBC News|title=Aussie Open day three quotes|date=16 January 2008|access-date=5 May 2010}}</ref>

Karlović defeated [[List of ATP number 1 ranked players|world No. 1]] [[Roger Federer]] in the third round of the [[2008 Cincinnati Masters – Men's singles|Cincinnati Masters]] on 31 July 2008. This was his first victory in seven matches against Federer. It was this loss which caused Federer to lose his No. 1 ranking to [[Rafael Nadal]]. Karlović then advanced to the semifinals where he lost to eventual champion [[Andy Murray]]. This was his career-best result in a [[ATP Masters Series|top-level tournament]].

At the US Open, Karlović fell to [[Sam Querrey]] in straight sets.

At the 2008 [[Madrid Open (tennis)|Madrid Masters]], he stunned World No. 3 [[Novak Djokovic]] in two tie-breaker sets serving 20 aces to seal victory in 1 hour and 42 minutes. However, he lost in the quarterfinals to Frenchman [[Gilles Simon]], being dominated in the tiebreaks.

===2009: First Grand Slam quarterfinal===
[[File:Ivo Karlovic Ivan Dodig Davis Cup 05032011 1.jpg|thumb|Ivo Karlović and [[Ivan Dodig]] in Davis Cup doubles match against Germany]]
At [[2009 Wimbledon Championships|Wimbledon 2009]], he powered through the first two rounds, beating [[Lukáš Lacko]] and [[Steve Darcis]]. In the next two rounds he needed only one break of serve in the third set to defeat both ninth seed [[Jo-Wilfried Tsonga]] and seventh seed [[Fernando Verdasco]], advancing to face [[Roger Federer]] in his first quarterfinal at a Grand Slam. The match was a relatively one-sided affair, with Federer winning in straight sets and going on to win the tournament.

In the [[2009 Davis Cup]] semifinals, Karlović was defeated by [[Radek Štěpánek]], despite hitting a record-breaking 78 aces (the record has since been taken by [[John Isner]]). The match was one of the longest in the history of the Davis Cup, lasting 5 hours, 59 minutes. There were only three breaks of serve in this match.<ref>BBC World Sport Today 19 September 2009.</ref>

Karlović also won his first five-set match in the Davis Cup quarterfinals against the United States, where he came from behind to beat [[James Blake (tennis)|James Blake]] from two sets down.

===2010: Australian Open fourth found, Injury and absence===
Karlović met Štěpánek again at the [[2010 Australian Open]], in another five-set marathon. This time, the 13-seeded Štěpánek lost. In all five-set matches Karlović has played, this was only his second win. He went on to reach a career-best fourth round there, after beating [[Julien Benneteau]] (in four sets), and [[Ivan Ljubičić]] (also in four sets). After giving a solid performance, he was ousted by the second seed and defending champion [[Rafael Nadal]] in that round.

As the second seed at the [[2010 Delray Beach International Tennis Championships]], he made a runner-up effort, losing to first-time ATP-finalist [[Ernests Gulbis]].

In the [[2010 Davis Cup]], where Croatia had a first-round clash with Ecuador, Karlović defeated [[Nicolás Lapentti]] in five sets. This was his third five-set match win, following his five-set win over Štěpánek at the Australian Open. His five-set record then stood at 3–12.

Karlović was forced to withdraw from 2010 Wimbledon due to a foot injury.<ref>{{cite web|url=http://thetennistimes.com/ivo-karlovic-withdraws-from-wimbledon-with-foot-injury/|title=Ivo Karlovic Withdraws from Wimbledon with Foot Injury|url-status=dead|archiveurl=https://web.archive.org/web/20100623043653/http://thetennistimes.com/ivo-karlovic-withdraws-from-wimbledon-with-foot-injury/|archivedate=23 June 2010}}</ref>

===2011–13: Rankings fall and fifth ATP title===
[[File:2013 US Open (Tennis) - Ivo Karlovic (9645487491).jpg|thumb|175px|Karlović at the [[2013 US Open (tennis)|2013 US Open]]]]
February 2011 saw Karlović temporarily exit from the top 200. In 2012, Karlović beat [[Dudi Sela]] in the first round of [[2012 Wimbledon Championships – Men's singles|Wimbledon]] in straight sets, but was knocked out in the second round by [[Andy Murray]].<ref>{{cite web|url=http://timesofindia.indiatimes.com/sports/tennis/wimbledon-2012/top-stories/Andy-Murray-cuts-Karlovic-down-to-size/articleshow/14473027.cms|title=Wimbledon 2012|website=[[The Times of India]]|access-date=29 June 2012}}</ref> Karlović controversially accused Wimbledon of being biased, as he was pulled up for approximately 11-foot faults.<ref>{{cite news|first=Simon|last=Briggs|title=Wimbledon 2012: Ivo Karlovic questions tournament's integrity after bitter defeat at hands of Andy Murray|date=28 June 2012|url=https://www.telegraph.co.uk/sport/tennis/wimbledon/9362942/Wimbledon-2012-Ivo-Karlovic-questions-tournaments-integrity-after-bitter-defeat-at-hands-of-Andy-Murray.html |archive-url=https://ghostarchive.org/archive/20220112/https://www.telegraph.co.uk/sport/tennis/wimbledon/9362942/Wimbledon-2012-Ivo-Karlovic-questions-tournaments-integrity-after-bitter-defeat-at-hands-of-Andy-Murray.html |archive-date=12 January 2022 |url-access=subscription |url-status=live|work=The Telegraph|access-date=29 June 2012}}{{cbignore}}</ref>

In 2013, Karlović suffered from viral meningitis, which was not immediately diagnosed. He was unconscious for some time, and when he woke up, he did not know his name or what year it was.<ref name="atpworldtour.com"/> After a lengthy recovery, he was able to play again in Newport in July, where he made it to the quarterfinals, before being defeated by [[John Isner]] in one of their typical ace-fests.<ref name="atpworldtour.com"/>

In Bogota, also in July, he won his fifth ATP title, beating [[Alejandro Falla]] in the final. He did not qualify for the Rogers Cup or Cincinnati Masters.

At the US Open, he made it through qualifying and into the second round by defeating [[James Blake (tennis)|James Blake]] in the last singles match of his career in five sets. In the second round, he met [[Stanislas Wawrinka]], to whom he lost in straight sets.

===2014: Four ATP finals and return to top 30===
In February, Karlović reached the final of the U.S. National Indoor Tennis Championships, losing to [[Kei Nishikori]]. In May, he reached the final of the Düsseldorf Open, losing to [[Philipp Kohlschreiber]]. In July, he reached the final of the [[Hall of Fame Open]], losing an epic match to [[Lleyton Hewitt]]. Another solid week of tennis saw him make back-to-back finals, this time at the Claro Open Colombia, losing to [[Bernard Tomic]] in a tight three-setter. He avenged that loss the following month at the Rogers Cup in another tight three-setter.

===2015: Sixth ATP title and return to top 20===
Karlović won his sixth title, defeating [[Donald Young (tennis)|Donald Young]] at the Delray Beach Open. He also won the [[2015 Topshelf Open]] in doubles with [[Łukasz Kubot]]. He reached his second Hall of Fame Open final, which he lost to [[Rajeev Ram]] in three sets.

===2016: Seventh & eight titles as oldest champion since 1979, return to top 20===
[[File:Karlovic WM16 (14) (28385862606).jpg|thumb|175px|Karlović at the [[2016 Wimbledon Championships]]]]
Karlović suffered a knee injury and missed two months of play.

He reached the final of the Hall of Fame Open for the third time against [[Gilles Müller]], which he won in three tiebreaks. At the age of 37 and 5 months, he became the oldest player to win an ATP title since 1979. He reached an [[ATP World Tour 500 series]] tournament at the [[Washington Open (tennis)]], which he lost to [[Gaël Monfils]].<ref>{{cite web|url=https://www.si.com/tennis/2016/07/24/gael-monfils-ivo-karlovic-citi-open-final-atp-results|title=Gael Monfils ends title drought, edges Ivo Karlovic in Citi Open final|publisher=Sports Illustrated|accessdate=24 September 2025}}</ref>

He then won the [[Los Cabos Open]], beating [[Feliciano López]] in straight sets and returned to the top 20 again at 37 years and 6 months.

===2017: 75 Aces at Australian Open===
Karlović began the Australian Open by defeating [[Horacio Zeballos]] in a 5-hour, 15-minute match, the second-longest match at the tournament in the Open Era (behind the [[2012 Australian Open – Men's singles final|Djokovic–Nadal final]] in 2012). He set an Australian Open record, hitting 75 aces.<ref>{{Cite web|url=https://www.atptour.com/en/news/karlovic-zeballos-australian-open-2017-tuesday|title=Karlovic Fires into Australian Open Record Books with Zeballos Win &#124; ATP Tour &#124; Tennis}}</ref>

Aged 38, Karlović set up the oldest ATP Tour tournament final in 41 years against [[Gilles Muller]], aged 34, at the [[2017 Ricoh Open – Men's singles|2017 Ricoh Open]].<ref>{{cite web|url=http://timesofindia.indiatimes.com/sports/tennis/top-stories/karlovic-muller-set-up-oldest-final-in-41-years/articleshow/59199973.cms|title=Karlovic, Muller set-up oldest final in 41 years|work=[[The Times of India]]|date=16 June 2017|access-date=18 June 2017}}{{dead link|date=November 2017|bot=InternetArchiveBot|fix-attempted=yes }}</ref> He lost in straight sets.

===2018: Defying age===
At the [[2018 Australian Open|Australian Open]], Karlović progressed to the Round of 32, losing to [[Andreas Seppi]], 7–9 in the fifth set.

At the [[2018 Ecuador Open Quito|Ecuador Open]] in Quito, Karlović made it to the Round of 16, losing to 18 years old [[Corentin Moutet]] in a third-set tie-break.

Next, he reached the quarterfinals at [[New York Open (tennis)|New York Open]] losing to second seed [[Sam Querrey]].

After a string of tight first round losses at [[Delray Beach Open]], [[Indian Wells Masters]] and [[Miami Open (tennis)]], the [[U.S. Men's Clay Court Championships]] in Houston saw Karlović reach the semifinals with wins over Japanese [[Taro Daniel]], [[Denis Kudla]] and 4th seed [[Nick Kyrgios]]. In the semifinals, he lost to eventual runner-up [[Tennys Sandgren]] in two close tie-break sets.

At [[2018 Wimbledon Championships|Wimbledon]], he reached the second round. At the US Open, he was defeated in the second round of qualifying.

In October, he became the oldest champion of an [[ATP Challenger]] tournament, winning the [[Calgary Challenger]] at 39 years and seven months.<ref>{{Cite web|url=https://www.atpworldtour.com/en/news/challenger-spotlight-2018-karlovic-calgary|title=Karlovic Becomes Oldest Challenger Champion|work=ATP World Tour|date=21 October 2018}}</ref>

=== 2019: Oldest ATP finalist since 1977 ===
At the [[2019 Maharashtra Open – Singles|Maharashtra Open]] Karlović beat teenager [[Félix Auger-Aliassime]] in first round. The age gap of 21 years and 6 months between the two players was the largest on the ATP Tour since 2011. Karlović and Auger-Aliassime were the oldest and the youngest players in the Top 200 ATP rankings at the beginning of the [[2019 ATP Tour|2019 season]].<ref>{{Cite web|url=http://www.atptour.com/en/news/paire-vesely-pune-2019-tuesday|title=Battle of the Ages: Karlovic Overcomes Felix in Pune {{!}} ATP Tour {{!}} Tennis|website=ATP Tour|access-date=2019-01-03}}</ref> He went on to make the final, at 39 years and 10 months becoming the oldest finalist on the ATP Tour since 43-year-old [[Ken Rosewall]] won the 1977 Hong Kong championship.<ref>{{cite web|url=http://www.tennisnow.com/News/2019/January/Defying-Age,-Karlovic-Oldest-ATP-Finalist-In-42-Ye.aspx|title=Defying Age, Karlovic Oldest ATP Finalist in 42 Years|date=4 January 2019|publisher=Tennis Now|access-date=4 January 2019 }}</ref>

With his victory over [[Matthew Ebden]] at the [[2019 BNP Paribas Open – Men's singles|Indian Wells Masters]], he became the first player aged over 40 to win an ATP Tour match since [[Jimmy Connors]] in 1995 in Halle. In addition, Karlović was the oldest to win a match in ATP Masters 1000 history.<ref>{{cite web|url=https://www.atptour.com/en/news/indian-wells-2019-thursday-karlovic|title=The 40 Club: Karlovic Scores Historic Win|website=ATP Tour|date=8 March 2019}}</ref> He subsequently defeated 11th seed, compatriot [[Borna Coric]] to become the oldest man to win two back-to-back matches at the Masters 1000-level.<ref> {{cite web|url=https://total-croatia-news.com/news/sport/ivo-karlovic-4/|title= INDIAN WELLS MASTERS: VETERAN KARLOVIĆ DEFIES AGE TO OVERCOME ĆORIĆ|date=10 March 2019}} </ref><ref> {{cite web|url= https://www.nytimes.com/2019/03/12/sports/ivo-karlovic.html |title=At 40, Ivo Karlovic Remains a Towering and Punishing Force|date=12 March 2019|publisher=[[The New York Times]]}} </ref>

=== 2021-2024: 63rd Grand Slam appearance, Retirement ===
At the [[2021 Hall of Fame Open]] in Newport, Karlovic won against 24-year-old [[Bernabé Zapata Miralles]]. This was only his second match win for 2021, the first being at the [[2021 Delray Beach Open]] against [[Pablo Andújar]]. At 42 years old, Karlovic was the oldest player to compete in an ATP Tour match since [[Thomas Muster]], 44, in 2011 in Vienna (l. to Dominic Thiem in R1).<ref>{{Cite web|url=http://www.atptour.com/en/news/karlovic-sandgren-newport-2021-tuesday|title=Ageless Ivo Karlovic Books Alexander Bublik Battle In Newport|website=ATP Tour|date=13 July 2021}}</ref>

In July, [[Los Cabos Open]] organisers circulated news of Karlović's retirement at the [[US Open (tennis)|2021 US Open]].<ref>{{Cite web|url=https://www.ubitennis.net/2021/07/former-top-20-player-ivo-karlovic-to-retire/ |title=Former Top 20 Player Ivo Karlovic To Retire|website=Ubitennis|date=19 July 2021}}</ref> Later, he said he may change his mind and continue playing in 2022 if he got good results.<ref>{{Cite web|url=https://www.tennisworldusa.org/tennis/news/Tennis_Interviews/100176/ivo-karlovic-i-think-i-ll-retire-at-us-open-but-i-might-change-my-mind/|title = Ivo Karlovic: I think I'll retire at US Open but I might change my mind| date=22 July 2021 }}</ref>
Karlović entered the [[2021 US Open – Men's singles qualifying|2021 US Open qualifying draw]] for possibly his last tournament. He won all three of his qualifying matches to qualify for the [[2021 US Open – Men's singles qualifying|US Open]], making him the second-oldest Grand Slam qualifier in the Open Era after [[Mal Anderson]] qualified for the [[1977 Australian Open (December)|1977 Australian Open]].<ref>{{Cite web|url=https://www.atptour.com/en/news/karlovic-us-open-2021-feature|title=History-Making Karlovic: 'I Really Have Nothing To Lose'|website=ATP Tour|date=29 August 2021}}</ref> It was his 17th Grand Slam draw participation at the US Open and the 63rd [[All-time tennis records – Men's singles#Grand Slam tournaments|overall Grand Slam main draw appearance]] for the 42-year-old.<ref>{{Cite web|url=https://www.tennisnow.com/Blogs/NET-POSTS/August-2021/US-Open-Meet-the-16-Men-s-Singles-Qualifiers.aspx|title = US Open: Meet the 16 Men's Singles Qualifiers}}</ref> He lost in the first round to 5th seed [[Andrey Rublev]] in straight sets.

He officially retired in February 2024 after two-and-a-half years of inactivity.<ref>{{Cite web |date=2024-02-21 |title=Hard-serving Karlovic, 44, announces retirement |url=https://www.espn.com/tennis/story/_/id/39567167/ivo-karlovic-officially-announces-retirement-tennis |access-date=2024-05-16 |website=ESPN.com |language=en}}</ref><ref>{{Cite web |title=Ivo Karlovic confirms his retirement {{!}} ATP Tour {{!}} Tennis |url=http://www.atptour.com/en/news/karlovic-announces-retirement-february-2024 |access-date=2024-05-16 |website=ATP Tour}}</ref><ref> {{Cite web|url=https://www.tennis.com/news/articles/hard-serving-ivo-karlovic-officially-announces-his-retirement-from-pro-tennis-at-age-44|title=Hard-serving Ivo Karlovic, 44, officially announces his retirement from tennis|date=21 February 2024}}</ref> He had been listed as a retired player by the [[International Tennis Integrity Agency]] since 15 June 2023.<ref>{{cite web | url=https://www.itia.tennis/tadp/retired-players-list/ | title=ITIA - Retired Players List }}</ref>

==National representation==
Karlović has been absent from some previous [[Croatia Davis Cup team|Croatian]] [[Davis Cup]] campaigns owing to his dispute with the [[Croatian Tennis Association]].<ref>{{cite web|url=http://www.index.hr/mobile/clanak.aspx?category=vijesti&id=369542|title=Kaotična godina hrvatskog tenisa|work=[[Index.hr]]|date=31 December 2007|language=Croatian|access-date=6 January 2015}}</ref> He further strained his relations with the Croatian Tennis Association and the [[Croatian Olympic Committee]] by his last-minute withdrawal from the [[Tennis at the 2008 Summer Olympics|Olympic tournament in Beijing]], communicated via an [[SMS message]].<ref>{{cite web|url=http://sportske.jutarnji.hr/misterij-karlovic--covjek-koji-je-olimpijske-igre-otkazao-sms-om/853638/|title=Misterij Karlović: Čovjek koji je Olimpijske igre otkazao SMS-om|work=[[Sportske novosti]]|date=8 August 2008|language=Croatian|access-date=18 September 2011|url-status=dead|archiveurl=https://web.archive.org/web/20120324151708/http://sportske.jutarnji.hr/misterij-karlovic--covjek-koji-je-olimpijske-igre-otkazao-sms-om/853638/|archivedate=24 March 2012}}</ref><ref>{{cite web|url=http://www.vjesnik.com/html/2008/08/08/Clanak.asp?r=spo&c=5|archive-url=https://web.archive.org/web/20090630005630/http://www.vjesnik.com/html/2008/08/08/Clanak.asp?r=spo&c=5|url-status=dead|archive-date=30 June 2009|title=Mateša: Karlović je iskazao potpuno odsustvo odgovornosti|work=[[Vjesnik]]|date=8 August 2008|language=Croatian|access-date=11 August 2008 }}</ref>

He played against Japan in the first round in 2012 in Japan with wins over [[Kei Nishikori]] and [[Go Soeda]] in singles and in doubles winning with Dodig.

In 2016, he accepted an invitation to the [[2016 Davis Cup#Final|Davis Cup final]] against Argentina. He played the second match, losing against [[Juan Martín del Potro]], and had to play the last deciding match, again losing against [[Federico Delbonis]].

==Performance timelines==
{{Performance key}}

===Singles===
{|class="wikitable nowrap" style=text-align:center;font-size:84%
!Tournament!![[2000 ATP Tour|2000]]!![[2001 ATP Tour|2001]]!![[2002 ATP Tour|2002]]!![[2003 ATP Tour|2003]]!![[2004 ATP Tour|2004]]!![[2005 ATP Tour|2005]]!![[2006 ATP Tour|2006]]!![[2007 ATP Tour|2007]]!![[2008 ATP Tour|2008]]!![[2009 ATP World Tour|2009]]!![[2010 ATP World Tour|2010]]!![[2011 ATP World Tour|2011]]!![[2012 ATP World Tour|2012]]!![[2013 ATP World Tour|2013]]!![[2014 ATP World Tour|2014]]!![[2015 ATP World Tour|2015]]!![[2016 ATP World Tour|2016]]!![[2017 ATP World Tour|2017]]!![[2018 ATP World Tour|2018]]!![[2019 ATP Tour|2019]]!![[2020 ATP Tour|2020]]!![[2021 ATP Tour|2021]]!!SR!!W–L!!Win%
|-
| colspan="26" align="left" |'''[[Grand Slam (tennis)|Grand Slam tournaments]]'''
|-
|align=left|[[Australian Open]]
|A
|bgcolor=ecf2ff|[[2001 Australian Open – Men's singles qualifying|Q3]]
|bgcolor=ecf2ff|[[2002 Australian Open – Men's singles qualifying|Q2]]
|A
|bgcolor=afeeee|[[2004 Australian Open – Men's singles|2R]]
|bgcolor=afeeee|[[2005 Australian Open – Men's singles|1R]]
|bgcolor=afeeee|[[2006 Australian Open – Men's singles|1R]]
|bgcolor=afeeee|[[2007 Australian Open – Men's singles|1R]]
|bgcolor=afeeee|[[2008 Australian Open – Men's singles|3R]]
|bgcolor=afeeee|[[2009 Australian Open – Men's singles|2R]]
|bgcolor=afeeee|[[2010 Australian Open – Men's singles|4R]]
|bgcolor=afeeee|[[2011 Australian Open – Men's singles|1R]]
|bgcolor=afeeee|[[2012 Australian Open – Men's singles|3R]]
|bgcolor=afeeee|[[2013 Australian Open – Men's singles|1R]]
|bgcolor=afeeee|[[2014 Australian Open – Men's singles|1R]]
|bgcolor=afeeee|[[2015 Australian Open – Men's singles|2R]]
|bgcolor=afeeee|[[2016 Australian Open – Men's singles|1R]]
|bgcolor=afeeee|[[2017 Australian Open – Men's singles|3R]]
|bgcolor=afeeee|[[2018 Australian Open – Men's singles|3R]]
|bgcolor=afeeee|[[2019 Australian Open – Men's singles|2R]]
|bgcolor=afeeee|[[2020 Australian Open – Men's singles|2R]]
|A
|0 / 17
|16–17
|48%
|-
|align=left|[[French Open]]
|A
|A
|bgcolor=ecf2ff|[[2002 French Open – Men's singles qualifying#Fourth qualifier|Q1]]
|bgcolor=ecf2ff|[[2003 French Open – Men's singles qualifying#Fourteenth Qualifier|Q2]]
|bgcolor=afeeee|[[2004 French Open – Men's singles|1R]]
|bgcolor=afeeee|[[2005 French Open – Men's singles|1R]]
|bgcolor=afeeee|[[2006 French Open – Men's singles|2R]]
|bgcolor=afeeee|[[2007 French Open – Men's singles|2R]]
|bgcolor=afeeee|[[2008 French Open – Men's singles|1R]]
|bgcolor=afeeee|[[2009 French Open – Men's singles|1R]]
|A
|bgcolor=afeeee|[[2011 French Open – Men's singles|1R]]
|bgcolor=afeeee|[[2012 French Open – Men's singles|1R]]
|A
|bgcolor=afeeee|[[2014 French Open – Men's singles|3R]]
|bgcolor=afeeee|[[2015 French Open – Men's singles|1R]]
|bgcolor=afeeee|[[2016 French Open – Men's singles|3R]]
|bgcolor=afeeee|[[2017 French Open – Men's singles|2R]]
|bgcolor=afeeee|[[2018 French Open – Men's singles|1R]]
|bgcolor=afeeee|[[2019 French Open – Men's singles|2R]]
|bgcolor=ecf2ff|[[2020 French Open – Men's singles qualifying#Tenth Qualifier|Q2]]
|A
|0 / 14
|8–14
|36%
|-
|align=left|[[Wimbledon Championships|Wimbledon]]
|bgcolor=ecf2ff|[[2000 Wimbledon Championships – Men's singles qualifying|Q3]]
|bgcolor=ecf2ff|[[2001 Wimbledon Championships – Men's singles qualifying|Q2]]
|bgcolor=ecf2ff|[[2002 Wimbledon Championships – Men's singles qualifying|Q1]]
|bgcolor=afeeee|[[2003 Wimbledon Championships – Men's singles|3R]]
|bgcolor=afeeee|[[2004 Wimbledon Championships – Men's singles|4R]]
|bgcolor=afeeee|[[2005 Wimbledon Championships – Men's singles|1R]]
|bgcolor=afeeee|[[2006 Wimbledon Championships – Men's singles|1R]]
|bgcolor=afeeee|[[2007 Wimbledon Championships – Men's singles|1R]]
|bgcolor=afeeee|[[2008 Wimbledon Championships – Men's singles|1R]]
|bgcolor=ffebcd|[[2009 Wimbledon Championships – Men's singles|QF]]
|A
|bgcolor=afeeee|[[2011 Wimbledon Championships – Men's singles|2R]]
|bgcolor=afeeee|[[2012 Wimbledon Championships – Men's singles|2R]]
|A
|bgcolor=afeeee|[[2014 Wimbledon Championships – Men's singles|1R]]
|bgcolor=afeeee|[[2015 Wimbledon Championships – Men's singles|4R]]
|bgcolor=afeeee|[[2016 Wimbledon Championships – Men's singles|2R]]
|bgcolor=afeeee|[[2017 Wimbledon Championships – Men's singles|1R]]
|bgcolor=afeeee|[[2018 Wimbledon Championships – Men's singles|2R]]
|bgcolor=afeeee|[[2019 Wimbledon Championships – Men's singles|2R]]
|style=color:#767676|NH
|bgcolor=ecf2ff|[[2021 Wimbledon Championships – Men's singles qualifying#Sixth Qualifier|Q1]]
|0 / 15
|17–15
|53%
|-
|align=left|[[US Open (tennis)|US Open]]
|bgcolor=ecf2ff|[[2000 US Open – Men's singles qualifying|Q1]]
|bgcolor=ecf2ff|[[2001 US Open – Men's singles qualifying|Q2]]
|bgcolor=ecf2ff|[[2002 US Open – Men's singles qualifying|Q1]]
|bgcolor=afeeee|[[2003 US Open – Men's singles|3R]]
|bgcolor=afeeee|[[2004 US Open – Men's singles|1R]]
|bgcolor=afeeee|[[2005 US Open – Men's singles|2R]]
|bgcolor=afeeee|[[2006 US Open – Men's singles|1R]]
|bgcolor=afeeee|[[2007 US Open – Men's singles|1R]]
|bgcolor=afeeee|[[2008 US Open – Men's singles|3R]]
|bgcolor=afeeee|[[2009 US Open – Men's singles|1R]]
|A
|bgcolor=afeeee|[[2011 US Open – Men's singles|3R]]
|bgcolor=afeeee|[[2012 US Open – Men's singles|1R]]
|bgcolor=afeeee|[[2013 US Open – Men's singles|2R]]
|bgcolor=afeeee|[[2014 US Open – Men's singles|2R]]
|bgcolor=afeeee|[[2015 US Open – Men's singles|2R]]
|bgcolor=afeeee|[[2016 US Open – Men's singles|4R]]
|bgcolor=afeeee|[[2017 US Open – Men's singles|1R]]
|bgcolor=ecf2ff|[[2018 US Open – Men's singles qualifying#Tenth qualifier|Q2]]
|bgcolor=afeeee|[[2019 US Open – Men's singles|1R]]
|bgcolor=afeeee|[[2020 US Open – Men's singles|1R]]
|bgcolor=afeeee|[[2021 US Open – Men's singles|1R]]
|0 / 17
|13–17
|43%
|-style=font-weight:bold;background:#efefef
|style=text-align:left|Win–loss
|0–0
|0–0
|0–0
|4–2
|4–4
|1–4
|1–4
|1–4
|4–4
|5–4
|3–1
|3–4
|3–4
|1–2
|3–4
|5–4
|6–4
|3–4
|3–3
|3–4
|1–2
|0–1
|0 / 63
|54–63
|46%
|-
| colspan="26" align="left" |'''National representation'''
|-
|align=left|[[Tennis at the Summer Olympics|Summer Olympics]]
|A
|colspan=3 style=color:#767676|not held
|bgcolor=afeeee|[[Tennis at the 2004 Summer Olympics – Men's singles|3R]]
|colspan=3 style=color:#767676|not held
|A
|colspan=3 style=color:#767676|not held
|A
|colspan=3 style=color:#767676|not held
|A
|colspan=4 style=color:#767676|not held
|A
|0 / 1
|2–1
|67%
|-
|align=left|[[Davis Cup]]
|bgcolor=ecf2ff|[[2000 Davis Cup Europe/Africa Zone|Z2]]
|A
|bgcolor=ffebcd|[[2002 Davis Cup World Group|QF]]
|A
|bgcolor=afeeee|[[2004 Davis Cup World Group|1R]]
|bgcolor=lime|[[2005 Davis Cup World Group|'''W''']]
|A
|A
|bgcolor=ecf2ff|[[2008 Davis Cup World Group play-offs|PO]]
|bgcolor=yellow|[[2009 Davis Cup World Group|SF]]
|bgcolor=ffebcd|[[2010 Davis Cup World Group|QF]]
|bgcolor=afeeee|[[2011 Davis Cup World Group|1R]]
|bgcolor=ffebcd|[[2012 Davis Cup World Group|QF]]
|A
|A
|A
|bgcolor=thistle|[[2016 Davis Cup World Group|F]]
|A
|A
|A
|A
|A
|1 / 8
|9–10
|47%
|-
| colspan="26" align="left" |'''[[ATP Tour Masters 1000]]'''
|-
|align=left|[[Indian Wells Open]]
|A
|A
|A
|A
|bgcolor=afeeee|[[2004 Pacific Life Open – Men's singles|1R]]
|bgcolor=afeeee|[[2005 Pacific Life Open – Men's singles|2R]]
|bgcolor=afeeee|[[2006 Pacific Life Open – Men's singles|2R]]
|bgcolor=ecf2ff|[[2007 Pacific Life Open – Men's singles|Q1]]
|bgcolor=afeeee|[[2008 Pacific Life Open – Men's singles|3R]]
|bgcolor=afeeee|[[2009 BNP Paribas Open – Men's singles|3R]]
|bgcolor=afeeee|[[2010 BNP Paribas Open – Men's singles|2R]]
|bgcolor=ffebcd|[[2011 BNP Paribas Open – Men's singles|QF]]
|bgcolor=afeeee|[[2012 BNP Paribas Open – Men's singles|1R]]
|bgcolor=afeeee|[[2013 BNP Paribas Open – Men's singles|2R]]
|bgcolor=afeeee|[[2014 BNP Paribas Open – Men's singles|2R]]
|bgcolor=afeeee|[[2015 BNP Paribas Open – Men's singles|2R]]
|A
|bgcolor=afeeee|[[2017 BNP Paribas Open – Men's singles|2R]]
|bgcolor=afeeee|[[2018 BNP Paribas Open – Men's singles|1R]]
|bgcolor=afeeee|[[2019 BNP Paribas Open – Men's singles|4R]]
|style=color:#767676|NH
|bgcolor=ecf2ff|[[2021 BNP Paribas Open – Men's singles#Eleventh qualifier|Q2]]
|0 / 14
|13–14
|48%
|-
|align=left|[[Miami Open (tennis)|Miami Open]]
|A
|A
|A
|A
|bgcolor=afeeee|[[2004 NASDAQ-100 Open – Men's singles|1R]]
|bgcolor=afeeee|[[2005 NASDAQ-100 Open – Men's singles|1R]]
|bgcolor=afeeee|[[2006 NASDAQ-100 Open – Men's singles|1R]]
|bgcolor=afeeee|[[2007 Sony Ericsson Open – Men's singles|1R]]
|bgcolor=afeeee|[[2008 Sony Ericsson Open – Men's singles|2R]]
|bgcolor=afeeee|[[2009 Sony Ericsson Open – Men's singles|2R]]
|bgcolor=afeeee|[[2010 Sony Ericsson Open – Men's singles|3R]]
|bgcolor=afeeee|[[2011 Sony Ericsson Open – Men's singles|1R]]
|bgcolor=afeeee|[[2012 Sony Ericsson Open – Men's singles|2R]]
|bgcolor=ecf2ff|[[2013 Sony Open Tennis – Men's singles#Eleventh qualifier|Q1]]
|bgcolor=afeeee|[[2014 Sony Open Tennis – Men's singles|2R]]
|bgcolor=afeeee|[[2015 Miami Open – Men's singles|2R]]
|A
|bgcolor=afeeee|[[2017 Miami Open – Men's singles|3R]]
|bgcolor=afeeee|[[2018 Miami Open – Men's singles|1R]]
|bgcolor=afeeee|[[2019 Miami Open – Men's singles|1R]]
|style=color:#767676|NH
|bgcolor=ecf2ff|[[2021 Miami Open – Men's singles#First qualifier|Q2]]
|0 / 14
|4–14
|22%
|-
|align=left|[[Monte-Carlo Masters]]
|A
|A
|A
|A
|A
|bgcolor=afeeee|[[2005 Monte Carlo Masters – Singles|1R]]
|bgcolor=afeeee|[[2006 Monte Carlo Masters – Singles|1R]]
|A
|bgcolor=afeeee|[[2008 Monte Carlo Masters – Singles|2R]]
|bgcolor=afeeee|[[2009 Monte-Carlo Rolex Masters – Singles|2R]]
|A
|A
|A
|A
|bgcolor=afeeee|[[2014 Monte-Carlo Rolex Masters – Singles|1R]]
|A
|bgcolor=afeeee|[[2016 Monte-Carlo Rolex Masters – Singles|1R]]
|A
|A
|A
|style=color:#767676|NH
|A
|0 / 6
|2–6
|25%
|-
|align=left|[[Madrid Open (tennis)|Madrid Open]]
|colspan=2 style=color:#767676|not held
|A
|A
|bgcolor=afeeee|[[2004 Mutua Madrileña Masters Madrid – Singles|1R]]
|bgcolor=ffebcd|[[2005 Mutua Madrileña Masters Madrid – Singles|QF]]
|A
|bgcolor=afeeee|[[2007 Mutua Madrileña Masters Madrid – Singles|3R]]
|bgcolor=ffebcd|[[2008 Mutua Madrileña Masters Madrid – Singles|QF]]
|bgcolor=afeeee|[[2009 Mutua Madrileña Madrid Open – Men's singles|2R]]
|bgcolor=afeeee|[[2010 Mutua Madrileña Madrid Open – Men's singles|2R]]
|bgcolor=afeeee|[[2011 Mutua Madrid Open – Men's singles|1R]]
|bgcolor=afeeee|[[2012 Mutua Madrid Open – Men's singles|1R]]
|A
|A
|bgcolor=afeeee|[[2015 Mutua Madrid Open – Men's singles|1R]]
|bgcolor=afeeee|[[2016 Mutua Madrid Open – Men's singles|1R]]
|bgcolor=afeeee|[[2017 Mutua Madrid Open – Men's singles|2R]]
|A
|A
|style=color:#767676|NH
|A
|0 / 11
|10–11
|48%
|-
|align=left|[[Italian Open (tennis)|Italian Open]]
|A
|A
|A
|A
|bgcolor=afeeee|[[2004 Italian Open – Men's singles|3R]]
|bgcolor=ecf2ff|[[2005 Italian Open – Men's singles|Q1]]
|A
|bgcolor=ecf2ff|[[2007 Italian Open – Men's singles|Q2]]
|bgcolor=afeeee|[[2008 Italian Open – Men's singles|3R]]
|bgcolor=afeeee|[[2009 Italian Open – Men's singles|2R]]
|A
|bgcolor=afeeee|[[2011 Italian Open – Men's singles|1R]]
|bgcolor=ecf2ff|[[2012 Italian Open – Men's singles#Qualifying|Q2]]
|A
|bgcolor=afeeee|[[2014 Italian Open – Men's singles|2R]]
|A
|bgcolor=afeeee|[[2016 Italian Open – Men's singles|1R]]
|A
|A
|A
|A
|A
|0 / 6
|6–6
|50%
|-
|align=left|[[Canadian Open (tennis)|Canadian Open]]
|A
|A
|bgcolor=ecf2ff|[[2002 Canada Masters – Singles|Q1]]
|A
|bgcolor=afeeee|[[2004 Canada Masters – Singles|1R]]
|bgcolor=afeeee|[[2005 Rogers Masters – Singles|1R]]
|A
|bgcolor=afeeee|[[2007 Rogers Masters – Singles|2R]]
|A
|bgcolor=afeeee|[[2009 Rogers Masters – Singles|1R]]
|A
|bgcolor=afeeee|[[2011 Rogers Cup – Men's singles|3R]]
|A
|bgcolor=ecf2ff|[[2013 Rogers Cup – Men's singles#Qualifying|Q2]]
|bgcolor=afeeee|[[2014 Rogers Cup – Men's singles|2R]]
|bgcolor=afeeee|[[2015 Rogers Cup – Men's singles|3R]]
|bgcolor=afeeee|[[2016 Rogers Cup – Men's singles|3R]]
|A
|A
|bgcolor=ecf2ff|[[2019 Rogers Cup – Men's singles#Third qualifier|Q2]]
|style=color:#767676|NH
|A
|0 / 8
|8–8
|50%
|-
|align=left|[[Cincinnati Open]]
|A
|A
|A
|A
|bgcolor=afeeee|[[2004 Western & Southern Financial Group Masters – Singles|3R]]
|bgcolor=ecf2ff|[[2005 Western & Southern Financial Group Masters – Singles|Q1]]
|A
|bgcolor=afeeee|[[2007 Western & Southern Financial Group Masters – Singles|1R]]
|bgcolor=yellow|[[2008 Western & Southern Financial Group Masters – Singles|SF]]
|bgcolor=afeeee|[[2009 Western & Southern Financial Group Masters – Singles|2R]]
|A
|bgcolor=afeeee|[[2011 Western & Southern Financial Group Masters – Singles|2R]]
|A
|bgcolor=ecf2ff|[[2013 Western & Southern Open – Men's singles#Qualifying|Q2]]
|bgcolor=afeeee|[[2014 Western & Southern Open – Men's singles|1R]]
|bgcolor=afeeee|[[2015 Western & Southern Open – Men's singles|3R]]
|bgcolor=afeeee|[[2016 Western & Southern Open – Men's singles|1R]]
|bgcolor=afeeee|[[2017 Western & Southern Open – Men's singles|3R]]
|bgcolor=ecf2ff|[[2018 Western & Southern Open – Men's singles#Qualifying|Q2]]
|bgcolor=afeeee|[[2019 Western & Southern Open – Men's singles|1R]]
|A
|A
|0 / 10
|12–10
|55%
|-
|align=left|[[Shanghai Masters (tennis)|Shanghai Masters]]
|colspan=9 style=color:#767676|not Masters series
|bgcolor=afeeee|[[2009 Shanghai ATP Masters 1000 – Singles|1R]]
|A
|A
|A
|A
|bgcolor=afeeee|[[2014 Shanghai Rolex Masters – Singles|3R]]
|bgcolor=afeeee|[[2015 Shanghai Rolex Masters – Singles|2R]]
|bgcolor=afeeee|[[2016 Shanghai Rolex Masters – Singles|1R]]
|bgcolor=afeeee|[[2017 Shanghai Rolex Masters – Singles|1R]]
|A
|A
|colspan=2 style=color:#767676|not held
|0 / 5
|3–5
|37%
|-
|align=left|[[Paris Masters]]
|A
|bgcolor=ecf2ff|[[2001 Paris Masters – Singles|Q1]]
|A
|bgcolor=ecf2ff|[[2003 BNP Paribas Masters – Singles|Q1]]
|bgcolor=ecf2ff|[[2004 BNP Paribas Masters – Singles|Q1]]
|A
|A
|bgcolor=afeeee|[[2007 BNP Paribas Masters – Singles|2R]]
|bgcolor=afeeee|[[2008 BNP Paribas Masters – Singles|1R]]
|bgcolor=afeeee|[[2009 BNP Paribas Masters – Singles|2R]]
|A
|A
|A
|bgcolor=ecf2ff|[[2013 BNP Paribas Masters – Singles#Qualifying|Q1]]
|bgcolor=afeeee|[[2014 BNP Paribas Masters – Singles|1R]]
|bgcolor=afeeee|[[2015 BNP Paribas Masters – Singles|1R]]
|bgcolor=afeeee|[[2016 BNP Paribas Masters – Singles|2R]]
|A
|A
|A
|A
|A
|0 / 6
|3–6
|33%
|-
|align=left|[[German Open Tennis Championships|German Open]]
|A
|A
|A
|A
|A
|bgcolor=afeeee|[[2005 Hamburg Masters – Singles|1R]]
|A
|A
|bgcolor=afeeee|[[2008 Masters Series Hamburg – Singles|3R]]
|colspan=13 style="color:#767676"|not Masters Series
|0 / 2
|2–2
|50%
|-style=font-weight:bold;background:#efefef
|style=text-align:left|Win–loss
|0–0
|0–0
|0–0
|0–0
|4–6
|4–6
|1–3
|4–5
|12–8
|6–9
|2–3
|7–6
|1–3
|1–1
|6–8
|5–7
|3–7
|4–5
|0–2
|3–3
|0–0
|0–0
|0 / 82
|63–82
|43%
|-
| colspan="26" align="left" |'''Career statistics'''
|-
!!!2000!!2001!!2002!!2003!!2004!!2005!!2006!!2007!!2008!!2009!!2010!!2011!!2012!!2013!!2014!!2015!!2016!!2017!!2018!!2019!!2020!!2021!! colspan="3" |Career
|-bgcolor=efefef
|align=left|Tournaments
|0
|1
|2
|7
|25
|22
|18
|24
|26
|22
|9
|20
|16
|14
|28
|26
|24
|20
|16
|15
|4
|4
|colspan=3|'''343'''
|-style=font-weight:bold;background:#efefef
|style=text-align:left|Titles
|0
|0
|0
|0
|0
|0
|0
|3
|1
|0
|0
|0
|0
|1
|0
|1
|2
|0
|0
|0
|0
|0
|colspan=3|8
|-style=font-weight:bold;background:#efefef
|style=text-align:left|Finals
|0
|0
|0
|0
|0
|1
|0
|4
|1
|0
|1
|0
|0
|1
|4
|2
|3
|1
|0
|1
|0
|0
|colspan=3|19
|-bgcolor=efefef
|align=left|Hard W–L
|0–0
|0–1
|1–1
|5–4
|6–12
|9–11
|8–11
|29–16
|19–15
|10–15
|15–7
|12–14
|14–11
|13–11
|24–18
|26–18
|20–15
|8–12
|4–7
|9–11
|1–4
|1–3
|4 / 217
|234–217
|52%
|-bgcolor=efefef
|align=left|Clay W–L
|0–0
|0–0
|0–2
|1–1
|5–8
|0–6
|7–5
|5–2
|5–8
|6–6
|2–2
|3–4
|0–4
|0–1
|7–6
|1–3
|4–6
|3–4
|5–6
|1–2
|0–0
|0–0
|1 / 71
|55–76
|42%
|-bgcolor=efefef
|align=left|Grass W–L
|1–0
|0–0
|0–1
|3–2
|5–3
|7–3
|0–2
|8–2
|7–2
|7–2
|0–0
|1–3
|2–2
|2–1
|5–4
|11–4
|8–3
|4–4
|2–3
|1–2
|0–0
|1–1
|3 / 47
|75–44
|63%
|-bgcolor=efefef
|align=left|Carpet W–L
|1–0
|0–0
|0–0
|0–0
|2–3
|1–3
|2–1
|1–1
|0–1
|colspan=13 style="color:#767676"|discontinued
|0 / 8
|7–9
|44%
|-style=font-weight:bold;background:#efefef
|style=text-align:left|Overall win–loss
|2–0
|0–1
|1–4
|9–7
|18–26
|17–23
|17–19
|43–21
|31–26
|23–23
|17–9
|16–21
|16–17
|15–13
|36–28
|38–25
|32–24
|15–20
|11–16
|11–15
|1–4
|2–4
|8 / 343
|371–346
|52%
|-style=font-weight:bold;background:#efefef
|align=left|Win %
|100%
|0%
|20%
|56%
|41%
|43%
|47%
|67%
|54%
|50%
|61%
|43%
|48%
|54%
|56%
|60%
|57%
|43%
|41%
|42%
|20%
|33%
|colspan=3|{{tennis win percentage|won=371|lost=346}}
|-bgcolor=efefef
|align=left|Year-end ranking
|286
|193
|201
|73
|61
|70
|98
|22
|26
|37
|73
|56
|100
|78
|27
|23
|20
|80
|100
|95
|147
|273
|colspan=3|{{Tooltip|'''$10,160,232'''|Career Prize Money – Singles & Doubles combined}}
|}

===Doubles===
{|class="wikitable nowrap" style=text-align:center;font-size:84%
!Tournament!![[2004 ATP Tour|2004]]!![[2005 ATP Tour|2005]]!![[2006 ATP Tour|2006]]!![[2007 ATP Tour|2007]]!![[2008 ATP Tour|2008]]!![[2009 ATP World Tour|2009]]!![[2010 ATP World Tour|2010]]!![[2011 ATP World Tour|2011]]!![[2012 ATP World Tour|2012]]!![[2013 ATP World Tour|2013]]!![[2014 ATP World Tour|2014]]!![[2015 ATP World Tour|2015]]!![[2016 ATP World Tour|2016]]!![[2017 ATP World Tour|2017]]!![[2018 ATP World Tour|2018]]!![[2019 ATP Tour|2019]]!![[2020 ATP Tour|2020]]!![[2021 ATP Tour|2021]]!!SR!!W–L
|-
| colspan="21" align="left" |'''[[Grand Slam (tennis)|Grand Slam tournaments]]'''
|-
|align=left|[[Australian Open]]
|bgcolor=afeeee|[[2004 Australian Open – Men's doubles|3R]]
|bgcolor=afeeee|[[2005 Australian Open – Men's doubles|1R]]
|bgcolor=ffebcd|[[2006 Australian Open – Men's doubles|QF]]
|bgcolor=afeeee|[[2007 Australian Open – Men's doubles|1R]]
|bgcolor=afeeee|[[2008 Australian Open – Men's doubles|1R]]
|bgcolor=afeeee|[[2009 Australian Open – Men's doubles|2R]]
|bgcolor=yellow|[[2010 Australian Open – Men's doubles|SF]]
|bgcolor=afeeee|[[2011 Australian Open – Men's doubles|1R]]
|bgcolor=afeeee|[[2012 Australian Open – Men's doubles|1R]]
|A
|bgcolor=afeeee|[[2014 Australian Open – Men's doubles|1R]]
|bgcolor=afeeee|[[2015 Australian Open – Men's doubles|1R]]
|A
|A
|A
|A
|A
|A
|0 / 11
|10–11
|-
|align=left|[[French Open]]
|bgcolor=afeeee|[[2004 French Open – Men's doubles|2R]]
|bgcolor=afeeee|[[2005 French Open – Men's doubles|1R]]
|bgcolor=afeeee|[[2006 French Open – Men's doubles|1R]]
|A
|A
|bgcolor=afeeee|[[2009 French Open – Men's doubles|1R]]
|A
|bgcolor=afeeee|[[2011 French Open – Men's doubles|2R]]
|A
|A
|A
|A
|bgcolor=afeeee|[[2016 French Open – Men's doubles|1R]]
|A
|A
|A
|A
|A
|0 / 6
|2–6
|-
|align=left|[[Wimbledon Championships|Wimbledon]]
|bgcolor=afeeee|[[2004 Wimbledon Championships – Men's doubles|1R]]
|bgcolor=afeeee|[[2005 Wimbledon Championships – Men's doubles|3R]]
|A
|A
|A
|A
|A
|bgcolor=afeeee|[[2011 Wimbledon Championships – Men's doubles|2R]]
|bgcolor=afeeee|[[2012 Wimbledon Championships – Men's doubles|2R]]
|A
|A
|A
|A
|A
|A
|A
|style=color:#767676|NH
|A
|0 / 4
|4–4
|-
|align=left|[[US Open (tennis)|US Open]]
|bgcolor=afeeee|[[2004 US Open – Men's doubles|2R]]
|A
|bgcolor=afeeee|[[2006 US Open – Men's doubles|1R]]
|bgcolor=afeeee|[[2007 US Open – Men's doubles|2R]]
|bgcolor=afeeee|[[2008 US Open – Men's doubles|1R]]
|A
|A
|bgcolor=afeeee|[[2011 US Open – Men's doubles|2R]]
|bgcolor=afeeee|[[2012 US Open – Men's doubles|1R]]
|A
|bgcolor=afeeee|[[2014 US Open – Men's doubles|1R]]
|A
|A
|A
|A
|A
|A
|A
|0 / 7
|3–7
|-style=font-weight:bold;background:#efefef
|style=text-align:left|Win–loss
|4–4
|2–3
|3–3
|1–2
|0–2
|1–2
|4–1
|3–4
|1–3
|0–0
|0–2
|0–1
|0–1
|0–0
|0–0
|0–0
|0–0
|0–0
|0 / 28
|19–28
|-
| colspan="21" align="left" |'''Career statistics'''
|-
!!!2004!!2005!!2006!!2007!!2008!!2009!!2010!!2011!!2012!!2013!!2014!!2015!!2016!!2017!!2018!!2019!!2020!!2021!! colspan="2" |Career
|-bgcolor=efefef
|align=left|Tournaments
|12
|10
|10
|9
|10
|8
|5
|10
|10
|4
|7
|3
|1
|0
|3
|0
|0
|0
|colspan=2|'''111'''
|-style=font-weight:bold;background:#efefef
|style=text-align:left|Titles / Finals
|0 / 0
|0 / 0
|1 / 1
|0 / 1
|0 / 0
|0 / 0
|0 / 0
|0 / 0
|0 / 0
|0 / 0
|0 / 0
|1 / 1
|0 / 0
|0 / 0
|0 / 0
|0 / 0
|0 / 0
|0 / 0
|colspan=2|2 / 3
|-style=font-weight:bold;background:#efefef
|style=text-align:left|Overall win–loss
|11–12
|7–9
|16–8
|7–9
|2–11
|5–8
|7–5
|6–11
|10–11
|5–4
|1–6
|3–2
|0–1
|0–0
|4–3
|0–0
|0–0
|0–0
|colspan=2|91–109
|-bgcolor=efefef
|align=left|Year-end ranking
|87
|109
|66
|153
|375
|176
|82
|162
|140
|248
|812
|277
|–
|–
|270
|–
|–
|–
|colspan=2|'''{{tennis win percentage|won=91|lost=109}}'''
|}

==Style of play==
Karlović plays a very offensive and powerful playing style. His best and most powerful weapon is his serve. His height of 2.11 meters makes his serve very powerful and it is regarded as one of if not the best in tennis history. He has hit 13,762 aces during his career, the second most in all of ATP history.

Besides his huge serve, Karlović also has a powerful forehand which he usually hits deep and fast into his opponent's baseline. On his backhand side, he usually slices the ball deep into his opponent's baseline and rarely uses the [[one-handed backhand]] drive that he possesses.

Karlović is also known as a [[serve-and-volley]]er. His serve usually causes players to return the ball lightly, at which point he will come forward on the ball and volley it. His skill at the net is one of the key traits of his playing style.

===Serving records===
[[File:251 kmph serve by Ivo Karlovic Davis Cup 05032011 1 Zagreb.jpg|thumb|Karlović produced the fastest serve ever during a Davis Cup doubles match against Germany on 5 March 2011]]
On 18 September 2009, Karlović hit 78 aces (77 aces on 1st serve) in a [[Davis Cup]] match against [[Radek Štěpánek]], breaking his previous record of 51 (against [[Daniele Bracciali]] in the [[2005 Wimbledon Championships]]) and 55 (against [[Lleyton Hewitt]] in the [[2009 French Open]]). Only once in his ATP career has he failed to hit an ace during a match, which was in the [[2008 Monte Carlo Masters]] against Frenchman [[Gaël Monfils]].<ref name="Ferrer, Davydenko Advance in Straight Sets">{{cite news|url=http://montecarlo.masters-series.com/1/en/news/newsarticle_1033.asp|author=[[Monte Carlo Masters]]|title=Ferrer, Davydenko Advance in Straight Sets|access-date=17 April 2008|publisher=Monte Carlo Masters|url-status=dead|archiveurl=https://web.archive.org/web/20080427015810/http://montecarlo.masters-series.com/1/en/news/newsarticle_1033.asp|archivedate=27 April 2008}}</ref> His record of aces in a single match was broken by both [[John Isner]] and [[Nicolas Mahut]] in [[Isner–Mahut match at the 2010 Wimbledon Championships|the longest match in tennis history]] at the first round of the [[2010 Wimbledon Championships]], where Isner hit 113 aces and Mahut hit 103.

In 2007, Karlović became the fourth player since 1991 to serve 1,000 aces in a season. He finished the year with 1,318 aces, second behind [[Goran Ivanišević]], who hit 1,477 in 1996.<ref>{{Cite web|url=http://www.atptennis.com/1/en/2007news/tokyo_friday.asp|title=ATPtennis.com – Tennis news from around the world|date=11 October 2007|archive-url=https://web.archive.org/web/20071011021018/http://www.atptennis.com/1/en/2007news/tokyo_friday.asp|archive-date=11 October 2007}}</ref> In 2015, he became the third player since 1991 (after [[Goran Ivanišević]] and [[Andy Roddick]]) to serve 9,000 career aces.,<ref>{{cite web|url=http://en.espn.co.uk/tennis/sport/story/386785.html|title=Karlovic becomes third player to notch 9,000 aces|work=en.espn.co.uk|date=6 January 2015|access-date=9 April 2015|archive-date=16 April 2015|archive-url=https://web.archive.org/web/20150416221933/http://en.espn.co.uk/tennis/sport/story/386785.html|url-status=dead}}</ref> and the second to notch 10,000 aces.

Karlović's fastest official serve is {{convert|156|mph|km/h}}, which he hit during his five-set loss in the [[2011 Davis Cup]] first round third rubber doubles match with [[Ivan Dodig]] against [[Christopher Kas]] and [[Philipp Petzschner]] of Germany. That was ATP's official record at the time.<ref>[https://www.espn.com/sports/tennis/news/story?id=6186905 Ivo Karlovic sets world serve record]</ref><ref>[https://www.foxsports.com/stories/tennis/karlovic-serves-up-record-156-mph-blast Karlovic serves up record 156 mph blast]</ref> His previous record was {{convert|153|mph|km/h}} in a victory over [[Arnaud Clément]] in the final of Nottingham in 2007. This is the third-fastest first serve on record, after [[Andy Roddick]]'s {{convert|155|mph|km/h}}.<ref name=karlovicstats>[http://media.www.redandblack.com/media/storage/paper871/news/2008/01/16/Sports/Titans.Tower.Over.Competition-3153780.shtml Karlovic Stats] {{webarchive|url=https://web.archive.org/web/20081003011636/http://media.www.redandblack.com/media/storage/paper871/news/2008/01/16/Sports/Titans.Tower.Over.Competition-3153780.shtml|date=3 October 2008 }}</ref><ref>{{Cite web|url=https://uk.sports.yahoo.com/|title=Yahoo UK & Ireland – Sports News &#124; Live Scores &#124; Results|website=uk.sports.yahoo.com}}</ref> He also hit a {{convert|144|mph|km/h}} second serve against [[Paul Capdeville]] in the quarterfinals of the [[2007 Legg Mason Tennis Classic – Singles|2007 Legg Mason Tennis Classic]] on 3 August, which is the fastest second serve on record.<ref name=karlovicstats /><ref>{{cite web|url=http://www.all-about-tennis.com/ivo-karlovic.html|title=Ivo Karlovic is Currently the Tallest Player in the ATP|access-date=2010-06-23|url-status=dead|archiveurl=https://web.archive.org/web/20100621081253/http://www.all-about-tennis.com/ivo-karlovic.html|archivedate=21 June 2010}}. Retrieved 23 June 2010.</ref><ref>{{cite web|url=http://www.ontennis.com/content/ivo-karlovic|title=Ivo Karlovic &#124; OnTennis.com|access-date=2010-06-23|url-status=dead|archiveurl=https://web.archive.org/web/20100211094302/http://www.ontennis.com/content/ivo-karlovic|archivedate=11 February 2010}}. Retrieved 23 June 2010.</ref><ref>[http://www.atpworldtour.com/Tennis/Players/Top-Players/Ivo-Karlovic.aspx?t=pa&y=2007&m=s&e=0# Retrieved 23 June 2010.]</ref>

Karlovic's record of a 156&nbsp;mph serve was broken by Samuel Groth at the 2012 ATP Challenger in Busan, but was still the record for ATP events until John Isner broke the record in 2016.<ref name="atpworldtour.com" />

On 19 June 2015 Karlović broke the record for most aces in a three-set ATP Tour match during the quarterfinal of [[2015 Gerry Weber Open]]. He served 45 aces in a 7–5, 6–7<sup>(8–10)</sup>, 6–3 win over [[Tomáš Berdych]].<ref>[https://www.bbc.com/sport/0/tennis/33208268 Retrieved on 20 June 2015.]</ref>

Karlović held the record for the most aces since 1991 after surpassing [[Goran Ivanišević]] in October 2015. As of September 2021, he has struck 13,728 aces in 694 matches (not including Davis Cup).<ref>[http://www.atpworldtour.com/en/news/karlovic-becomes-new-ace-king-2015 Karlovic Sets All-Times Aces Record]. Retrieved 27 May 2016.</ref><ref>{{Cite news|url=http://www.atpworldtour.com/en/stats/aces|title=Aces {{!}} ATP World Tour {{!}} Tennis|work=ATP World Tour|access-date=2018-11-25|language=en}}</ref> This record was surpassed by John Isner in June 2022, who hit his 13,729th ace in a third round match at the [[2022 Wimbledon Championships]].<ref>{{Cite news |last=Bodo |first=Peter |date=13 July 2022 |title=Does John Isner belong in the International Tennis Hall of Fame? |work=Tennis.com |url=https://www.tennis.com/news/articles/does-john-isner-belong-in-the-international-tennis-hall-of-fame |access-date=14 July 2022}}</ref>

==Personal life==
During Karlović's childhood, his mother Gordana worked in agriculture, while his father Vlado was a [[meteorologist]].

Karlović married his wife Alsi on 29 March 2005. Their first child, Jada Valentina, was born in September 2011.<ref>{{cite news|url=http://www.vecernji.hr/scena/tenisac-ivo-karlovic-supruga-alsiona-postali-roditelji-djevojcice-clanak-327920|title=Tenisač Ivo Karlović i supruga Alsiona postali roditelji djevojčice|publisher=Večernji list|language=Croatian|date=17 September 2011|access-date=17 September 2011}}</ref>

One of his favorite activities is playing basketball.

Karlović is known for his humorous Twitter account.

Karlović wears European size 51 shoes.<ref>{{cite web|title=Six things about being 6' 10|url=http://www.atpworldtour.com/News/DEUCE-Tennis/DEUCE-US-Open-2007/Karlovic-Highs-And-Lows.aspx|publisher=[[Association of Tennis Professionals]] (ATP)|date=10 September 2007}}</ref>

==Equipment and apparel==
Karlovic currently endorses the [[Head (company)|Head]] Graphene Radical Pro, and wears [[Mizuno Corporation|Mizuno]] clothing.

Early on in his career, Karlović used [[Head (company)|Head]] Prestige racquets, until switching to the [[Head (company)|Head]] Flexpoint Instinct in 2005. He continued to use the Instinct until 2012, except for a brief switch to the [[Babolat]] AeroPro Drive Cortex in 2009.

In 2013, after a period of struggling to find a replacement for the Flexpoint Instinct he enjoyed, he finally switched to the [[Head (company)|Head]] YouTek IG Radical Pro, and proceeded to endorse the new Graphene Radical in 2014.

Karlović has previously worn apparel by [[Diadora]], My OCK, [[Adidas]], [[Nike, Inc.|Nike]], [[Li-Ning]], [[Sergio Tacchini]] and [[Mizuno Corporation|Mizuno]], as well as his own brand 6'10".

==ATP career finals==

===Singles: 19 (8 titles, 11 runner-ups)===
{|
|-valign=top
|
{|class=wikitable
!Legend
|-style=background:#f3e6d7
|Grand Slam tournaments (0–0)
|-style=background:#ffffcc
|ATP World Tour Finals (0–0)
|-style=background:#e9e9e9
|ATP World Tour Masters 1000 (0–0)
|-style=background:#d4f1c5
|ATP International Series Gold / <br> ATP World Tour 500 Series (0–1)
|-
|ATP International Series / <br> ATP World Tour 250 Series (8–10)
|}
|
{|class=wikitable
!Finals by surface
|-
|Hard (4–6)
|-
|Clay (1–1)
|-
|Grass (3–4)
|}
|
{|class=wikitable
!Finals by setting
|-
|Outdoor (7–10)
|-
|Indoor (1–1)
|}
|}

{|class="sortable wikitable nowrap"
!Result
!class=unsortable|W–L
!Date
!Tournament
!Tier
!Surface
!Opponent
!class=unsortable|Score
|-
|style=background:#ffa07a|Loss
|<small>0–1</small>
|[[2005 Stella Artois Championships – Singles|{{dts|Jun 2005}}]]
|[[Queen's Club Championships]], United Kingdom
|International
|Grass
|{{flagicon|USA}} [[Andy Roddick]]
|6–7<sup>(7–9)</sup>, 6–7<sup>(4–7)</sup>
|-
|style=background:#ffa07a|Loss
|<small>0–2</small>
|[[2007 SAP Open – Singles|{{dts|Feb 2007}}]]
|[[Pacific Coast Championships]], United States
|International
|Hard
|{{flagicon|GBR}} [[Andy Murray]]
|7–6<sup>(7–3)</sup>, 4–6, 6–7<sup>(2–7)</sup>
|-
|style=background:#98fb98|Win
|<small>1–2</small>
|[[2007 U.S. Men's Clay Court Championships – Singles|{{dts|Apr 2007}}]]
|[[U.S. Men's Clay Court Championships|US Clay Court Championships]], United States
|International
|Clay
|{{flagicon|ARG}} [[Mariano Zabaleta]]
|6–4, 6–1
|-
|style=background:#98fb98|Win
|<small>2–2</small>
|[[2007 Nottingham Open – Singles|{{dts|Jun 2007}}]]
|[[Nottingham Open]], United Kingdom
|International
|Grass
|{{flagicon|FRA}} [[Arnaud Clément]]
|3–6, 6–4, 6–4
|-
|style=background:#98fb98|Win
|<small>3–2</small>
|[[2007 If Stockholm Open – Singles|{{dts|Oct 2007}}]]
|[[Stockholm Open]], Sweden
|International
|Hard (i)
|{{flagicon|SWE}} [[Thomas Johansson]]
|6–3, 3–6, 6–1
|-
|style=background:#98fb98|Win
|<small>4–2</small>
|[[2008 Nottingham Open – Singles|{{dts|Jun 2008}}]]
|Nottingham Open, United Kingdom <small>(2)</small>
|International
|Grass{{efn|The final itself was played on indoor hard due to rain.<ref>{{cite news | url=https://www.reuters.com/article/uk-tennis-men-nottingham-idUKL2156097220080621 | title=Karlovic retains Nottingham tennis title | newspaper=Reuters | date=21 June 2008 }}</ref>}}
|{{flagicon|ESP}} [[Fernando Verdasco]]
|7–5, 6–7<sup>(4–7)</sup>, 7–6<sup>(10–8)</sup>
|-
|style=background:#ffa07a|Loss
|<small>4–3</small>
|[[2010 Delray Beach International Tennis Championships – Singles|{{dts|Feb 2010}}]]
|[[Delray Beach Open]], United States
|250 Series
|Hard
|{{flagicon|LAT}} [[Ernests Gulbis]]
|2–6, 3–6
|-
|style=background:#98fb98|Win
|<small>5–3</small>
|[[2013 Claro Open Colombia – Singles|{{dts|Jul 2013}}]]
|[[Colombia Open]], Colombia
|250 Series
|Hard
|{{flagicon|COL}} [[Alejandro Falla]]
|6–3, 7–6<sup>(7–4)</sup>
|-
|style=background:#ffa07a|Loss
|<small>5–4</small>
|[[2014 U.S. National Indoor Tennis Championships – Singles|{{dts|Feb 2014}}]]
|[[U.S. National Indoor Tennis Championships|US National Indoor Championships]], United States
|250 Series
|Hard (i)
|{{flagicon|JPN}} [[Kei Nishikori]]
|4–6, 6–7<sup>(0–7)</sup>
|-
|style=background:#ffa07a|Loss
|<small>5–5</small>
|[[2014 Düsseldorf Open – Singles|{{dts|May 2014}}]]
|[[Düsseldorf Open (ATP Tour)|Düsseldorf Open]], Germany
|250 Series
|Clay
|{{flagicon|GER}} [[Philipp Kohlschreiber]]
|2–6, 6–7<sup>(4–7)</sup>
|-
|style=background:#ffa07a|Loss
|<small>5–6</small>
|[[2014 Hall of Fame Tennis Championships – Singles|{{dts|Jul 2014}}]]
|[[Hall of Fame Open]], United States
|250 Series
|Grass
|{{flagicon|AUS}} [[Lleyton Hewitt]]
|3–6, 7–6<sup>(7–4)</sup>, 6–7<sup>(3–7)</sup>
|-
|style=background:#ffa07a|Loss
|<small>5–7</small>
|[[2014 Claro Open Colombia – Singles|{{dts|Jul 2014}}]]
|Colombia Open, Colombia
|250 Series
|Hard
|{{flagicon|AUS}} [[Bernard Tomic]]
|6–7<sup>(5–7)</sup>, 6–3, 6–7<sup>(4–7)</sup>
|-
|style=background:#98fb98|Win
|<small>6–7</small>
|[[2015 Delray Beach International Tennis Championships – Singles|{{dts|Feb 2015}}]]
|Delray Beach Open, United States
|250 Series
|Hard
|{{flagicon|USA}} [[Donald Young (tennis)|Donald Young]]
|6–3, 6–3
|-
|style=background:#ffa07a|Loss
|<small>6–8</small>
|[[2015 Hall of Fame Tennis Championships – Singles|{{dts|Jul 2015}}]]
|Hall of Fame Open, United States
|250 Series
|Grass
|{{flagicon|USA}} [[Rajeev Ram]]
|6–7<sup>(5–7)</sup>, 7–5, 6–7<sup>(2–7)</sup>
|-
|style=background:#98fb98|Win
|<small>7–8</small>
|[[2016 Hall of Fame Tennis Championships – Singles|{{dts|Jul 2016}}]]
|Hall of Fame Open, United States
|250 Series
|Grass
|{{flagicon|LUX}} [[Gilles Müller]]
|6–7<sup>(2–7)</sup>, 7–6<sup>(7–5)</sup>, 7–6<sup>(14–12)</sup>
|-
|style=background:#ffa07a|Loss
|<small>7–9</small>
|[[2016 Citi Open – Men's singles|{{dts|Jul 2016}}]]
|style=background:#D4F1C5|[[Washington Open (tennis)|Washington Open]], United States
|style=background:#D4F1C5|500 Series
|Hard
|{{flagicon|FRA}} [[Gaël Monfils]]
|7–5, 6–7<sup>(6–8)</sup>, 4–6
|-
|style=background:#98fb98|Win
|<small>8–9</small>
|[[2016 Los Cabos Open – Singles|{{dts|Aug 2016}}]]
|[[Los Cabos Open]], Mexico
|250 Series
|Hard
|{{flagicon|ESP}} [[Feliciano López]]
|7–6<sup>(7–5)</sup>, 6–2
|-
|style=background:#ffa07a|Loss
|<small>8–10</small>
|[[2017 Ricoh Open – Men's singles|{{dts|Jun 2017}}]]
|[[Rosmalen Grass Court Championships|Rosmalen Championships]], Netherlands
|250 Series
|Grass
|{{flagicon|LUX}} Gilles Müller
|6–7<sup>(5–7)</sup>, 6–7<sup>(4–7)</sup>
|-
|style=background:#ffa07a|Loss
|<small>8–11</small>
|[[2019 Maharashtra Open – Singles|{{dts|Jan 2019}}]]
|[[Maharashtra Open]], India
|250 Series
|Hard
|{{flagicon|RSA}} [[Kevin Anderson (tennis)|Kevin Anderson]]
|6–7<sup>(4–7)</sup>, 7–6<sup>(7–2)</sup>, 6–7<sup>(5–7)</sup>
|}

===Doubles: 3 (2 titles, 1 runner-up)===
{|
|-valign=top
|
{|class=wikitable
!Legend
|-style=background:#f3e6d7
|Grand Slam tournaments (0–0)
|-style=background:#ffffcc
|ATP World Tour Finals (0–0)
|-style=background:#e9e9e9
|ATP World Tour Masters 1000 (0–0)
|-style=background:#d4f1c5
|ATP International Series Gold / <br> ATP World Tour 500 Series (1–0)
|-
|ATP International Series / <br> ATP World Tour 250 Series (1–1)
|}
|
{|class=wikitable
!Finals by surface
|-
|Hard (1–1)
|-
|Clay (0–0)
|-
|Grass (1–0)
|}
|
{|class=wikitable
!Finals by setting
|-
|Outdoor (1–1)
|-
|Indoor (1–0)
|}
|}

{|class="sortable wikitable nowrap"
!Result
!class=unsortable|W–L
!Date
!Tournament
!Tier
!Surface
!Partner
!Opponents
!class=unsortable|Score
|-
|bgcolor=98FB98|Win
|<small>1–0</small>
|[[2006 Regions Morgan Keegan Championships – Doubles|{{dts|Feb 2006}}]]
|style=background:#D4F1C5|[[U.S. National Indoor Tennis Championships|US National Indoor Championships]], <br/> United States
|style=background:#D4F1C5|Intl. Gold
|Hard (i)
|{{flagicon|RSA}} [[Chris Haggard]]
|{{flagicon|USA}} [[James Blake (tennis)|James Blake]]<br>{{flagicon|USA}} [[Mardy Fish]]
|0–6, 7–5, [10–5]
|-
|bgcolor=FFA07A|Loss
|<small>1–1</small>
|[[2007 Indianapolis Tennis Championships – Doubles|{{dts|Jul 2007}}]]
|[[Indianapolis Tennis Championships|Indianapolis Championships]], <br/> United States
|International
|Hard
|{{flagicon|RUS}} [[Teymuraz Gabashvili]]
|{{flagicon|ARG}} [[Juan Martín del Potro]]<br>{{flagicon|USA}} [[Travis Parrott]]
|6–3, 2–6, [6–10]
|-
|bgcolor=98FB98|Win
|<small>2–1</small>
|[[2015 Topshelf Open – Men's doubles|{{dts|Jun 2015}}]]
|[[Rosmalen Grass Court Championships|Rosmalen Championships]], <br/> Netherlands
|250 Series
|Grass
|{{flagicon|POL}} [[Łukasz Kubot]] 
|{{flagicon|FRA}} [[Pierre-Hugues Herbert]]<br>{{flagicon|FRA}} [[Nicolas Mahut]]
|6–2, 7–6<sup>(11–9)</sup>
|}

== ATP Challenger Tour finals ==

===Singles: 12 (7–5)===
{|class="sortable wikitable"
!Result
!class=unsortable|W–L
!Date
!Tournament
!Surface
!Opponent
!class=unsortable|Score
|-
|bgcolor=98fb98|Win
|<small>1–0</small>
|{{dts|Dec 2001}}
|bgcolor=moccasin|[[JSM Challenger of Champaign–Urbana|Urbana]], United States
|Hard (i)
|{{flagicon|USA}} [[Robby Ginepri]]
|6–4, 7–6<sup>(7–5)</sup>
|-
|bgcolor=ffa07a|Loss
|<small>1–1</small>
|{{dts|Jul 2002}}
|bgcolor=moccasin|Andorra, Andorra
|Hard
|{{flagicon|BEL}} [[Dick Norman]]
|4–6, 4–6
|-
|bgcolor=98fb98|Win
|<small>2–1</small>
|{{dts|Aug 2003}}
|bgcolor=moccasin|[[Levene Gouldin & Thompson Tennis Challenger|Binghamton]], United States
|Hard
|{{flagicon|FRA}} [[Nicolas Thomann]]
|7–6<sup>(8–6)</sup>, 6–7<sup>(6–8)</sup>, 7–6<sup>(7–4)</sup>
|-
|bgcolor=98fb98|Win
|<small>3–1</small>
|{{dts|Aug 2003}}
|bgcolor=moccasin|[[GHI Bronx Tennis Classic|Bronx]], United States
|Hard
|{{flagicon|RUS}} [[Dmitry Tursunov]]
|6–3, 6–3
|-
|bgcolor=98fb98|Win
|<small>4–1</small>
|{{dts|Apr 2004}}
|bgcolor=moccasin|[[Calabasas Pro Tennis Championships|Calabasas]], United States
|Hard
|{{flagicon|USA}} [[Alex Bogomolov Jr.]]
|7–6<sup>(7–3)</sup>, 6–3
|-
|bgcolor=ffa07a|Loss
|<small>4–2</small>
|{{dts|Jun 2005}}
|bgcolor=moccasin|[[Aegon Surbiton Trophy|Surbiton]], United Kingdom
|Grass
|{{flagicon|ITA}} [[Daniele Bracciali]]
|7–6<sup>(7–0)</sup>, 6–7<sup>(5–7)</sup>, 6–7<sup>(4–7)</sup>
|-
|bgcolor=ffa07a|Loss
|<small>4–3</small>
|{{dts|Jun 2007}}
|bgcolor=moccasin|Surbiton, United Kingdom
|Grass
|{{flagicon|FRA}} [[Jo-Wilfried Tsonga]]
|3–6, 6–7<sup>(4–7)</sup>
|-
|bgcolor=98fb98|Win
|<small>5–3</small>
|[[2011 Natomas Men's Professional Tennis Tournament – Singles|{{dts|Oct 2011}}]]
|bgcolor=moccasin|[[Natomas Men's Professional Tennis Tournament|Sacramento]], United States
|Hard
|{{flagicon|USA}} [[James Blake (tennis)|James Blake]]
|6–4, 3–6, 6–4
|-
|bgcolor=98fb98|Win
|<small>6–3</small>
|[[2011 Royal Bank of Scotland Challenger – Singles|{{dts|Oct 2011}}]]
|bgcolor=moccasin|[[Tiburon Challenger|Tiburon]], United States
|Hard
|{{flagicon|USA}} [[Sam Querrey]]
|6–7<sup>(2–7)</sup>, 6–1, 6–4
|-
|bgcolor=ffa07a|Loss
|<small>6–4</small>
|[[2018 Monterrey Challenger – Singles|{{dts|Oct 2018}}]]
|bgcolor=moccasin|[[Monterrey Challenger|Monterrey]], Mexico
|Hard
|{{flagicon|ESP}} [[David Ferrer]]
|3–6, 4–6
|-
|bgcolor=98fb98|Win
|<small>7–4</small>
|[[2018 Calgary National Bank Challenger – Singles|{{dts|Oct 2018}}]]
|bgcolor=moccasin|[[Calgary Challenger|Calgary]], Canada
|Hard (i)
|{{flagicon|AUS}} [[Jordan Thompson (tennis)|Jordan Thompson]]
|7–6<sup>(7–3)</sup>, 6–3
|-
|bgcolor=ffa07a|Loss
|<small>7–5</small>
|[[2019 Oracle Challenger Series – Houston – Men's singles|{{dts|Nov 2019}}]]
|bgcolor=moccasin|[[Oracle Challenger Series – Houston|Houston]], United States
|Hard
|{{flagicon|USA}} [[Marcos Giron]]
|5–7, 7–6<sup>(7–5)</sup>, 6–7<sup>(9–11)</sup>
|}

===Doubles: 3 (0–3)===
{|class="sortable wikitable"
!Result
!class=unsortable|W–L
!Date
!Tournament
!Surface
!Partner
!Opponents
!class=unsortable|Score
|-
|bgcolor=ffa07a|Loss
|<small>0–1</small>
|{{dts|Dec 1999}}
|bgcolor=moccasin|Jaipur, India
|Grass
|{{flagicon|KAZ}} [[Yuri Schukin]]
|{{flagicon|CZE}} [[Tomáš Anzari]] <br>{{flagicon|JPN}} [[Satoshi Iwabuchi]]
|6–7<sup>(6–8)</sup>, 6–4, 6–7<sup>(5–7)</sup>
|-
|bgcolor=ffa07a|Loss
|<small>0–2</small>
|{{dts|Jun 2001}}
|bgcolor=moccasin|Salvador, Brazil
|Hard
|{{flagicon|MEX}} [[Alejandro Hernández (tennis)|Alejandro Hernández]]
|{{flagicon|BRA}} [[Adriano Ferreira]] <br> {{flagicon|BRA}} [[Daniel Melo]]
|6–3, 3–6, 6–7<sup>(3–7)</sup>
|-
|bgcolor=ffa07a|Loss
|<small>0–3</small>
|{{dts|Dec 2002}}
|bgcolor=moccasin|[[Keio Challenger|Yokohama]], Japan
|Carpet (i)
|{{flagicon|NZL}} [[Mark Nielsen (tennis)|Mark Nielsen]]
|{{flagicon|TPE}} [[Lu Yen-hsun]]<br>{{flagicon|THA}} [[Danai Udomchoke]]
|6–7<sup>(5–7)</sup>, 3–6
|}

== ITF futures finals ==

=== Singles: 8 (4–4) ===
{|class="sortable wikitable"
!Result
!class=unsortable|W–L
!Date
!Tournament
!Surface
!Opponent
!class=unsortable|Score
|-
|bgcolor=ffa07a|Loss
|<small>0–1</small>
|{{dts|Aug 1998}}
|bgcolor=cffcff|Croatia F6, [[Umag]]
|Clay
|{{flagicon|CRO}} [[Željko Krajan]]
|3–6, 6–3, 3–6
|-
|bgcolor=ffa07a|Loss
|<small>0–2</small>
|{{dts|Sep 1999}}
|bgcolor=cffcff|Germany F10, [[Oberhaching]]
|Clay
|{{flagicon|CZE}} [[Radim Žitko]]
|1–6, 2–6
|-
|bgcolor=ffa07a|Loss
|<small>0–3</small>
|{{dts|Feb 2000}}
|bgcolor=cffcff|Great Britain F1, [[Leeds]]
|Carpet (i)
|{{flagicon|NOR}} [[Helge Koll-Frafjord]]
|6–7<sup>(4–7)</sup>, 6–7<sup>(2–7)</sup>
|-
|bgcolor=ffa07a|Loss
|<small>0–4</small>
|{{dts|Feb 2000}}
|bgcolor=cffcff|Croatia F2, [[Zagreb]]
|Clay
|{{flagicon|CRO}} [[Mario Ančić]]
|6–7<sup>(14–16)</sup>, 4–6
|-
|bgcolor=98fb98|Win
|<small>1–4</small>
|{{dts|Mar 2000}}
|bgcolor=cffcff|France F6, [[Douai]]
|Clay (i)
|{{flagicon|BEL}} [[Olivier Rochus]]
|7–6<sup>(7–5)</sup>, 7–6<sup>(7–5)</sup>
|-
|bgcolor=98fb98|Win
|<small>2–4</small>
|{{dts|Sep 2000}}
|bgcolor=cffcff|France F18, [[Mulhouse]]
|Hard (i)
|{{flagicon|FRA}} [[Antony Dupuis]]
|6–7<sup>(4–7)</sup>, 7–6<sup>(7–5)</sup>, 6–4
|-
|bgcolor=98fb98|Win
|<small>3–4</small>
|{{dts|May 2001}}
|bgcolor=cffcff|Austria F3, [[Kramsach]]
|Clay
|{{flagicon|SPA}} [[Marc Fornell Mestres|Marc Fornell-Mestres]]
|6–3, 6–3
|-
|bgcolor=98fb98|Win
|<small>4–4</small>
|{{dts|Mar 2002}}
|bgcolor=cffcff|USA F6, [[San Antonio]]
|Hard
|{{flagicon|USA}} Marc Silva
|7–6<sup>(7–3)</sup>, 6–4
|}

=== Doubles: 10 (4–6) ===
{|class="sortable wikitable"
!Result
!class=unsortable|W–L
!Date
!Tournament
!Surface
!Partner
!Opponents
!class=unsortable|Score
|-
|bgcolor=ffa07a|Loss
|<small>0–1</small>
|{{dts|Jun 1998}}
|bgcolor=cffcff|Croatia F1, [[Veli Lošinj]]
|Clay
|{{flagicon|CRO}} [[Igor Šarić]]
|{{flagicon|CRO}} [[Saša Hiršzon]]<br>{{flagicon|CRO}} [[Željko Krajan]]
|6–7, 3–6
|-
|bgcolor=98fb98|Win
|<small>1–1</small>
|{{dts|Aug 1998}}
|bgcolor=cffcff|Croatia F4, [[Umag]]
|Clay
|{{flagicon|CRO}} [[Lovro Zovko]]
|{{flagicon|SLO}} Jaka Bozic<br>{{flagicon|SLO}} Marko Por
|7–5, 7–6
|-
|bgcolor=ffa07a|Loss
|<small>1–2</small>
|{{dts|Aug 1998}}
|bgcolor=cffcff|Croatia F5, [[Umag]]
|Clay
|{{flagicon|CRO}} [[Lovro Zovko]]
|{{flagicon|SWE}} [[Simon Aspelin]]<br>{{flagicon|NOR}} [[Helge Koll-Frafjord]]
|5–7, 4–6
|-
|bgcolor=ffa07a|Loss
|<small>1–3</small>
|{{dts|May 1999}}
|bgcolor=cffcff|Italy F7, [[Verona]]
|Clay
|{{flagicon|CRO}} [[Goran Orešić]]
|{{flagicon|ITA}} [[Massimo Ardinghi]]<br>{{flagicon|ITA}} [[Filippo Messori]]
|4–6, 6–7
|-
|bgcolor=ffa07a|Loss
|<small>1–4</small>
|{{dts|Jul 1999}}
|bgcolor=cffcff|Slovenia F2, [[Portorož]]
|Clay
|{{flagicon|CRO}} [[Goran Orešić]]
|{{flagicon|CZE}} [[Leoš Friedl]]<br>{{flagicon|CZE}} [[Petr Kovačka]]
|5–7, 4–6
|-
|bgcolor=ffa07a|Loss
|<small>1–5</small>
|{{dts|Feb 2000}}
|bgcolor=cffcff|Great Britain F2, [[Chigwell]]
|Carpet (i)
|{{flagicon|FRA}} [[Maxime Boyé]]
|{{flagicon|UK}} [[James Davidson (tennis)|James Davidson]]<br>{{flagicon|SWE}} [[Fredrik Lovén|Fredrik Loven]]
|6–7<sup>(1–7)</sup>, 6–7<sup>(5–7)</sup>
|-
|bgcolor=98fb98|Win
|<small>2–5</small>
|{{dts|Feb 2000}}
|bgcolor=cffcff|Croatia F2, [[Zagreb]]
|Clay
|{{flagicon|AUT}} [[Clemens Trimmel]]
|{{flagicon|FIN}} [[Tapio Nurminen]]<br>{{flagicon|FIN}} [[Janne Ojala]]
|6–4, 6–4
|-
|bgcolor=98fb98|Win
|<small>3–5</small>
|{{dts|Mar 2000}}
|bgcolor=cffcff|France F7, [[Poitiers]]
|Hard (i)
|{{flagicon|FRA}} [[Maxime Boyé]]
|{{flagicon|SWE}} [[Robert Lindstedt]]<br>{{flagicon|SWE}} [[Fredrik Lovén]]
|5–7, 6–3, 7–6<sup>(7–1)</sup>
|-
|bgcolor=98fb98|Win
|<small>4–5</small>
|{{dts|Mar 2001}}
|bgcolor=cffcff|France F6, [[Poitiers]]
|Carpet (i)
|{{flagicon|CRO}} [[Lovro Zovko]]
|{{flagicon|SWI}} [[Yves Allegro]]<br>{{flagicon|BEL}} Arnaud Fontaine
|7–6<sup>(7–3)</sup>, 6–7<sup>(5–7)</sup>, 6–2
|-
|bgcolor=ffa07a|Loss
|<small>4–6</small>
|{{dts|May 2001}}
|bgcolor=cffcff|Germany F2, [[Esslingen am Neckar|Esslingen]]
|Clay
|{{flagicon|AUS}} [[Paul Baccanello]]
|{{flagicon|GER}} [[Franz Stauder]]<br>{{flagicon|GER}} [[Alexander Waske]]
|5–7, 6–1, 4–6
|}

==National representation==

=== Team competition finals ===

====Davis Cup: 2 (1 title, 1 runner-up)====
{|class="sortable wikitable"
!Result
!Date
!Tournament
!Surface
!Partners
!Opponents
!class=unsortable|Score
|-
|bgcolor=98FB98|Win
|[[2005 Davis Cup World Group|{{dts|Dec 2005}}]]
|[[Davis Cup]], Bratislava, Slovakia
|Hard (i)
|{{flagicon|CRO}} [[Ivan Ljubičić]] <br> {{flagicon|CRO}} [[Mario Ančić]] <br> {{flagicon|CRO}} [[Goran Ivanišević]] 
|{{flagicon|SVK}} [[Dominik Hrbatý]] <br> {{flagicon|SVK}} [[Karol Kučera]] <br> {{flagicon|SVK}} [[Michal Mertiňák]]
|[[2005 Davis Cup#Final|3–2]]
|-
|bgcolor=ffa07a|Loss
|[[2016 Davis Cup World Group|{{dts|Nov 2016}}]]
|Davis Cup, Zagreb, Croatia
|Hard (i)
|{{flagicon|CRO}} [[Marin Čilić]] <br> {{flagicon|CRO}} [[Ivan Dodig]] <br> {{flagicon|CRO}} [[Franko Škugor]]
|{{flagicon|ARG}} [[Juan Martín del Potro]] <br> {{flagicon|ARG}} [[Federico Delbonis]] <br> {{flagicon|ARG}} [[Leonardo Mayer]] <br> {{flagicon|ARG}} [[Guido Pella]]
|[[2016 Davis Cup#Final|2–3]]
|}

====World Team Cup: 1 (1 title)====
{|class="sortable wikitable"
!Result
!Date
!Tournament
!Surface
!Partners
!Opponents
!class=unsortable|Score
|-
|bgcolor=98FB98|Win
|[[2006 ARAG World Team Cup|{{dts|May 2006}}]]
|[[World Team Cup]], Düsseldorf, Germany
|Clay
|{{flagicon|CRO}} [[Ivan Ljubičić]]<br>{{flagicon|CRO}} [[Mario Ančić]]
|{{flagicon|GER}} [[Nicolas Kiefer]]<br>{{flagicon|GER}} [[Alexander Waske]]<br>{{flagicon|GER}} [[Michael Kohlmann]]
|[[2006 ARAG World Team Cup#Final|2–1]]
|}

=== Davis Cup  (13–14) ===
{|
|- valign=top
|
{| class="wikitable"
!Group membership 
|- style="background:#ffc;"
|World Group (7–12)
|- style="background:#B0E0E6;"
|WG Play-off (2–1)
|- style="background:#cfc;"
|Group I (0–1)
|- style="background:#fcf;"
|Group II (4–0)
|}
|
{|class="wikitable" 
!Matches by surface
|-
|Hard (8–6)
|-
|Clay (1–7)
|-
|Grass (0–0)
|-
|Carpet (4–1)
|}
|
{|class="wikitable"
!Matches by type
|-
|Singles (9–10)
|-
|Doubles (4–4)
|}
|
{|class="wikitable"
|-
!Matches by venue
|-
|Croatia (8–8)
|-
|Away (5–6)
|}
|}

* <small>{{increase}} {{decrease}} indicates the outcome of the Davis Cup match followed by [[Davis Cup#Ties and rubbers|the score]], date, place of event, [[Davis Cup structure|the zonal classification and its phase]], and [[Tennis court#Types of tennis courts|the court surface]].</small>

{| class="wikitable"
!Result
!Rubber
!Match type (partner if any)
!Opponent nation
!Opponent player(s)
!Score
|-
! colspan="6" |<small>{{increase}}</small>5–0; [[2000 Davis Cup Europe/Africa Zone Group II|14–16 July 2000]]; Fitzwilliam L.T.C. [[Dublin]], Ireland; Group II Europe/Africa Second round; Carpet surface
|- style="background:#fcf;"
| bgcolor="98FB98" |Victory
|III
|Doubles (with [[Goran Ivanišević]])
|rowspan=2|{{flagicon|IRE}} [[Ireland Davis Cup team|Ireland]]
|[[Scott Barron (tennis)|Scott Barron]] / [[Owen Casey]]
|6–7<sup>(5–7)</sup>, 6–2, 6–1, 6–1
|- style="background:#fcf;"
| bgcolor="98FB98" |Victory
|IV
|Singles ([[dead rubber]])
|[[Conor Niland]]
|4–6, 6–3, 6–4
|-
|-
! colspan="6" |<small>{{increase}}</small>5–0; [[2000 Davis Cup Europe/Africa Zone Group II|6–8 October 2000]]; Mladost Trsat Hall, [[Rijeka]], Croatia; Group II Europe/Africa Third round; Carpet surface
|- style="background:#fcf;"
| bgcolor="98FB98" |Victory
|III
|Doubles (with [[Goran Ivanišević]])
|rowspan=2|{{flagicon|CIV}} [[Ivory Coast Davis Cup team|Ivory Coast]]
|Ilou Lonfo / [[Claude N'Goran]]
|7–6<sup>(8–6)</sup>, 6–4, 6–7<sup>(5–7)</sup>, 4–6, 6–0
|- style="background:#fcf;"
| bgcolor="98FB98" |Victory
|V
|Singles ([[dead rubber]])
|[[Claude N'Goran]]
|6–4, 6–1
|-
! colspan="6" |<small>{{decrease}}</small>2–3; [[2002 Davis Cup World Group|5–7 April 2002]]; Buenos Aires Lawn Tennis Club, Buenos Aires, Argentina; World Group Quarterfinals; Clay surface
|- style="background:#ffc;"
| bgcolor="FFA07A" |Defeat
|II
|Singles
|rowspan=2|{{flagicon|ARG}} [[Argentina Davis Cup team|Argentina]]
|[[Juan Ignacio Chela]]
|7–5, 4–6, 4–6, 2–6
|- style="background:#ffc;"
| bgcolor="FFA07A" |Defeat
|V
|Singles
|[[Gastón Gaudio]]
|4–6, 4–6, 2–6
|-
! colspan="6" |<small>{{decrease}}</small>1–4; [[2004 Davis Cup World Group|6–8 February 2004]]; Les Arenes, [[Metz]], France; World Group First round; Clay surface
|- style="background:#ffc;"
| bgcolor="FFA07A" |Defeat
|II
|Doubles (with [[Mario Ančić]])
|rowspan=2|{{flagicon|FRA}} [[France Davis Cup team|France]]
|[[Nicolas Escudé]] / [[Michaël Llodra]]
|1–6, 6–7<sup>(5–7)</sup>, 3–6
|- style="background:#ffc;"
| bgcolor="FFA07A" |Defeat
|IV
|Singles ([[dead rubber]])
|[[Nicolas Escudé]]
|6–7<sup>(5–7)</sup>, 2–6
|-
! colspan="6" |<small>{{increase}}</small>3–2; [[2005 Davis Cup World Group|23–25 September 2005]]; Dvorana SC Gripe, [[Split, Croatia|Split]], Croatia; World Group Semifinals; Carpet surface
|- style="background:#ffc;"
| bgcolor="FFA07A" |Defeat
|V
|Singles ([[dead rubber]])
|{{flagicon|RUS}} [[Russia Davis Cup team|Russia]]
|[[Dmitry Tursunov]]
|4–6, 4–6
|-
! colspan="6" |<small>{{increase}}</small>3–2; [[2008 Davis Cup Europe/Africa Zone Group I|11–13 April 2008]]; Sportska Dvorana, [[Dubrovnik]], Croatia; Group I Europe/Africa Second round; Hard surface
|- style="background:#cfc;"
| bgcolor="FFA07A" |Defeat
|I
|Singles
|{{flagicon|ITA}} [[Italy Davis Cup team|Italy]]
|[[Simone Bolelli]]
|6–7<sup>(7–9)</sup>, 3–6, 4–6
|-
! colspan="6" |<small>{{increase}}</small>4–1; [[2008 Davis Cup World Group play-offs|19–21 September 2008]]; Sportski Centar Visnjik, [[Zadar]], Croatia; World Group play-offs; Hard surface
|- style="background:#B0E0E6;"
| bgcolor="98FB98" |Victory
|II
|Singles
|rowspan=3|{{flagicon|BRA}} [[Brazil Davis Cup team|Brazil]]
|[[Thiago Alves (tennis)|Thiago Alves]]
|7–6<sup>(7–5)</sup>, 7–6<sup>(7–3)</sup>, 7–5
|- style="background:#B0E0E6;"
| bgcolor="FFA07A" |Defeat
|III
|Doubles (with [[Lovro Zovko]])
|[[Marcelo Melo]] / [[André Sá]]
|7–6<sup>(7–3)</sup>, 2–6, 5–7, 7–6<sup>(7–5)</sup>, 3–6
|- style="background:#B0E0E6;"
| bgcolor="98FB98" |Victory
|IV
|Singles
|[[Thomaz Bellucci]]
|7–6<sup>(7–5)</sup>, 6–4, 6–7<sup>(6–8)</sup>, 7–6<sup>(7–4)</sup>
|-
! colspan="6" |<small>{{increase}}</small>5–0; [[2009 Davis Cup World Group|6–8 March 2009]]; Visenamjenska Sportska Dvorana "Zatika", [[Poreč]], Croatia; World Group First round; Hard surface
|- style="background:#ffc;"
| bgcolor="98FB98" |Victory
|V
|Singles ([[dead rubber]])
|{{flagicon|CHI}} [[Chile Davis Cup team|Chile]]
|[[Hans Podlipnik Castillo]]
|6–3, 7–6<sup>(7–4)</sup>
|-
! colspan="6" |<small>{{increase}}</small>3–2; [[2009 Davis Cup World Group|10–12 July 2009]]; Visenamjenska Sportska Dvorana "Zatika", [[Poreč]], Croatia; World Group Quarterfinals; Clay surface
|- style="background:#ffc;"
| bgcolor="98FB98" |Victory
|I
|Singles
|{{flagicon|USA}} [[United States Davis Cup team|United States]]
|[[James Blake (tennis)|James Blake]]
|6–7<sup>(5–7)</sup>, 4–6, 6–3, 7–6<sup>(7–3)</sup>, 7–5
|-
! colspan="6" |<small>{{decrease}}</small>1–4; [[2009 Davis Cup World Group|18–20 September 2009]]; Visenamjenska Sportska Dvorana "Zatika", [[Poreč]], Croatia; World Group Semifinals; Clay surface
|- style="background:#ffc;"
| bgcolor="FFA07A" |Defeat
|I
|Singles
|{{flagicon|CZE}} [[Czech Republic Davis Cup team|Czech Republic]]
|[[Radek Štěpánek]]
|7–6<sup>(7–5)</sup>, 6–7<sup>(5–7)</sup>, 6–7<sup>(6–8)</sup>, 7–6<sup>(7–2)</sup>, 14–16
|-
! colspan="6" |<small>{{increase}}</small>5–0; [[2010 Davis Cup World Group|5–7 March 2010]]; Gradska Sportska Dvorana Varazdin, [[Varaždin]], Croatia; World Group First round; Hard surface
|- style="background:#ffc;"
| bgcolor="98FB98" |Victory
|I
|Singles
|rowspan=2|{{flagicon|ECU}} [[Ecuador Davis Cup team|Ecuador]]
|[[Nicolás Lapentti]]
|6–2, 5–7, 6–7<sup>(2–7)</sup>, 6–3, 6–4
|- style="background:#ffc;"
| bgcolor="98FB98" |Victory
|III
|Doubles (with [[Marin Čilić]])
|[[Giovanni Lapentti]] / [[Nicolás Lapentti]]
|7–6<sup>(7–3)</sup>, 6–3, 7–5
|-
! colspan="6" |<small>{{decrease}}</small>2–3; [[2011 Davis Cup World Group|4–6 March 2011]]; Dom Sportova, [[Zagreb]], Croatia; World Group First round; Hard surface
|- style="background:#ffc;"
| bgcolor="FFA07A" |Defeat
|III
|Doubles (with [[Ivan Dodig]])
|rowspan=2|{{flagicon|GER}} [[Germany Davis Cup team|Germany]]
|[[Christopher Kas]] / [[Philipp Petzschner]]
|3–6, 6–3, 7–5, 3–6, 4–6
|- style="background:#ffc;"
| bgcolor="FFA07A" |Defeat
|V
|Singles
|[[Philipp Petzschner]]
|4–6, 6–7<sup>(3–7)</sup>, 6–7<sup>(5–7)</sup>
|-
! colspan="6" |<small>{{increase}}</small>3–2; [[2012 Davis Cup World Group|10–12 February 2012]]; Bourbon Beans Dome, [[Kobe]], Japan; World Group First round; Hard surface
|- style="background:#ffc;"
| bgcolor="98FB98" |Victory
|II
|Singles
|rowspan=3|{{flagicon|JPN}} [[Japan Davis Cup team|Japan]]
|[[Kei Nishikori]]
|6–4, 6–4, 6–3
|- style="background:#ffc;"
| bgcolor="98FB98" |Victory
|III
|Doubles (with [[Ivan Dodig]])
|[[Tatsuma Ito]] / [[Yūichi Sugita]]
|6–4, 6–4, 3–6, 6–3
|- style="background:#ffc;"
| bgcolor="98FB98" |Victory
|V
|Singles
|[[Go Soeda]]
|7–6<sup>(7–4)</sup>, 6–1, 6–4
|-
! colspan="6" |<small>{{decrease}}</small>1–4; [[2012 Davis Cup World Group|6–8 April 2012]]; Parque Roca, [[Buenos Aires]], Argentina; World Group Quarterfinals; Clay surface
|- style="background:#ffc;"
| bgcolor="FFA07A" |Defeat
|II
|Singles
|rowspan=2|{{flagicon|ARG}} [[Argentina Davis Cup team|Argentina]]
|[[Juan Martín del Potro]]
|2–6, 6–7<sup>(7–9)</sup>, 1–6
|- style="background:#ffc;"
| bgcolor="FFA07A" |Defeat
|III
|Doubles (with [[Marin Čilić]])
|[[David Nalbandian]] / [[Eduardo Schwank]]
|6–3, 6–7<sup>(6–8)</sup>, 3–6, 7–6<sup>(8–6)</sup>, 6–8
|-
! colspan="6" |<small>{{decrease}}</small>2–3; [[2016 Davis Cup World Group|25–27 November 2016]]; Arena Zagreb, [[Zagreb]], Croatia; World Group Final; Hard surface
|- style="background:#ffc;"
| bgcolor="FFA07A" |Defeat
|II
|Singles
|rowspan=2|{{flagicon|ARG}} [[Argentina Davis Cup team|Argentina]]
|[[Juan Martín del Potro]]
|4–6, 7–6<sup>(8–6)</sup>, 3–6, 5–7
|- style="background:#ffc;"
| bgcolor="FFA07A" |Defeat
|V
|Singles
|[[Federico Delbonis]]
|3–6, 4–6, 2–6
|}

==Wins over top 10 players==
*He has a {{tennis record|won=21|lost=62}} record against players who were, at the time the match was played, ranked in the top 10.
{|class="wikitable nowrap" style=text-align:center;font-size:95%
|-style=background:#ffc
!Season
![[2000 ATP Tour|2000]]
![[2001 ATP Tour|2001]]
![[2002 ATP Tour|2002]]
![[2003 ATP Tour|2003]]
![[2004 ATP Tour|2004]]
![[2005 ATP Tour|2005]]
![[2006 ATP Tour|2006]]
![[2007 ATP Tour|2007]]
![[2008 ATP Tour|2008]]
![[2009 ATP World Tour|2009]]
![[2010 ATP World Tour|2010]]
![[2011 ATP World Tour|2011]]
![[2012 ATP World Tour|2012]]
![[2013 ATP World Tour|2013]]
![[2014 ATP World Tour|2014]]
![[2015 ATP World Tour|2015]]
![[2016 ATP World Tour|2016]]
![[2017 ATP World Tour|2017]]
![[2018 ATP World Tour|2018]]
![[2019 ATP World Tour|2019]]
![[2020 ATP World Tour|2020]]
![[2021 ATP Tour|2021]]
!Total
|-align=center
|Wins||0||0||0||1||0||2||1||4||2||2||0||1||0||1||2||4||0||1||0||0||0||0||'''21'''
|}

{|class="wikitable sortable"
!#
!Player
!Rank
!Event
!Surface
!Rd
!class=unsortable|Score
!IK Rank
|-
|colspan=8 style=text-align:center|'''[[2003 ATP Tour|2003]]'''
|-
|1.
|{{flagicon|AUS}} [[Lleyton Hewitt]]
|style=background:thistle|2
|bgcolor=F3E6D7|[[2003 Wimbledon Championships|Wimbledon]], London, United Kingdom
|style=background:#cfc|Grass
|bgcolor=afeeee|1R
|1–6, 7–6<sup>(7–5)</sup>, 6–3, 6–4
|203
|-
|colspan=8 style=text-align:center|'''[[2005 ATP Tour|2005]]'''
|-
|2.
|{{flagicon|AUS}} Lleyton Hewitt
|style=background:thistle|2
|[[2005 Stella Artois Championships|Queen's Club]], London, United Kingdom
|style=background:#cfc|Grass
|bgcolor=ffebcd|QF
|7–6<sup>(7–4)</sup>, 6–3
|77
|-
|3.
|{{flagicon|USA}} [[Andy Roddick]]
|style=background:#9cf|3
|bgcolor=E9E9E9|[[2005 Mutua Madrileña Masters Madrid|Madrid]], Spain
|style=background:#ccf|Hard (i)
|bgcolor=afeeee|2R
|3–6, 7–6<sup>(9–7)</sup>, 7–6<sup>(7–3)</sup>
|86
|-
|colspan=8 style=text-align:center|'''[[2006 ATP Tour|2006]]'''
|-
|4.
|{{flagicon|RUS}} [[Nikolay Davydenko]]
|bgcolor=EEE8AA|6
|bgcolor=D4F1C5|[[2006 Torneo Godó|Barcelona]], Spain
|bgcolor=#ebc2af|Clay
|bgcolor=afeeee|2R
|6–7<sup>(7–9)</sup>, 7–5, 6–4
|56
|-
|colspan=8 style=text-align:center|'''[[2007 ATP Tour|2007]]'''
|-
|5.
|{{flagicon|USA}} [[James Blake (tennis)|James Blake]]
|bgcolor=EEE8AA|6
|[[2007 SAP Open|San Jose]], United States
|style=background:#ccf|Hard (i)
|bgcolor=afeeee|2R
|6–7<sup>(4–7)</sup>, 7–6<sup>(13–11)</sup>, 6–4
|103
|-
|6.
|{{flagicon|GER}} [[Tommy Haas]]
|bgcolor=EEE8AA|10
|[[2007 U.S. Men's Clay Court Championships|Houston]], United States
|bgcolor=#ebc2af|Clay
|bgcolor=ffebcd|QF
|7–6<sup>(9–7)</sup>, 6–4
|108
|-
|7.
|{{flagicon|USA}} James Blake
|bgcolor=EEE8AA|8
|bgcolor=F3E6D7|[[2007 French Open|French Open]], Paris, France
|bgcolor=#ebc2af|Clay
|bgcolor=afeeee|1R
|4–6, 6–4, 7–5, 7–5
|85
|-
|8.
|{{flagicon|USA}} James Blake
|bgcolor=EEE8AA|7
|[[2007 Davidoff Swiss Indoors|Basel]], Switzerland
|style=background:#ccf|Hard (i)
|bgcolor=afeeee|2R
|4–6, 7–6<sup>(7–4)</sup>, 6–4
|25
|-
|colspan=8 style=text-align:center|'''[[2008 ATP Tour|2008]]'''
|-
|9.
|{{flagicon|SUI}} [[Roger Federer]]
|bgcolor=lime|1
|bgcolor=E9E9E9|[[2008 Western & Southern Financial Group Masters|Cincinnati]], United States
|style=background:#ccf|Hard
|bgcolor=afeeee|3R
|7–6<sup>(8–6)</sup>, 4–6, 7–6<sup>(7–5)</sup>
|22
|-
|10.
|{{flagicon|SRB}} [[Novak Djokovic]]
|style=background:#9cf|3
|bgcolor=E9E9E9|[[2008 Mutua Madrileña Masters Madrid|Madrid]], Spain
|style=background:#ccf|Hard (i)
|bgcolor=afeeee|3R
|7–6<sup>(7–4)</sup>, 7–6<sup>(7–5)</sup>
|21
|-
|colspan=8 style=text-align:center|'''[[2009 ATP World Tour|2009]]'''
|-
|11.
|{{flagicon|FRA}} [[Jo-Wilfried Tsonga]]
|bgcolor=EEE8AA|9
|bgcolor=F3E6D7|[[2009 Wimbledon Championships|Wimbledon]], London, United Kingdom
|style=background:#cfc|Grass
|bgcolor=afeeee|3R
|7–6<sup>(7–5)</sup>, 6–7<sup>(5–7)</sup>, 7–5, 7–6<sup>(7–5)</sup>
|36
|-
|12.
|{{flagicon|ESP}} [[Fernando Verdasco]]
|bgcolor=EEE8AA|8
|bgcolor=F3E6D7|Wimbledon, London, United Kingdom
|style=background:#cfc|Grass
|bgcolor=afeeee|4R
|7–6<sup>(7–5)</sup>, 6–7<sup>(4–7)</sup>, 6–3, 7–6<sup>(11–9)</sup>
|36
|-
|colspan=8 style=text-align:center|'''[[2011 ATP World Tour|2011]]'''
|-
|13.
|{{flagicon|ESP}} [[David Ferrer]]
|bgcolor=EEE8AA|6
|bgcolor=E9E9E9|[[2011 BNP Paribas Open|Indian Wells]], United States
|style=background:#ccf|Hard
|bgcolor=afeeee|2R
|7–6<sup>(7–3)</sup>, 6–3
|239
|-
|colspan=8 style=text-align:center|'''[[2013 ATP World Tour|2013]]'''
|-
|14.
|{{flagicon|CZE}} [[Tomáš Berdych]]
|bgcolor=EEE8AA|7
|bgcolor=D4F1C5|[[2013 Swiss Indoors|Basel]], Switzerland
|style=background:#ccf|Hard (i)
|bgcolor=afeeee|1R
|4–6, 7–6<sup>(7–4)</sup>, 7–6<sup>(7–2)</sup>
|83
|-
|colspan=8 style=text-align:center|'''[[2014 ATP World Tour|2014]]'''
|-
|15.
|{{flagicon|CZE}} Tomáš Berdych
|bgcolor=EEE8AA|7
|[[2014 Qatar ExxonMobil Open|Doha]], Qatar
|style=background:#ccf|Hard
|bgcolor=afeeee|1R
|7–6<sup>(9–7)</sup>, 7–6<sup>(7–4)</sup>
|78
|-
|16.
|{{flagicon|CRO}} [[Marin Čilić]]
|bgcolor=EEE8AA|9
|bgcolor=E9E9E9|[[2014 Shanghai Rolex Masters|Shanghai]], China
|style=background:#ccf|Hard
|bgcolor=afeeee|1R
|7–5, 2–6, 7–6<sup>(7–2)</sup>
|31
|-
|colspan=8 style=text-align:center|'''[[2015 ATP World Tour|2015]]'''
|-
|17.
|{{flagicon|SRB}} Novak Djokovic
|bgcolor=lime|1
|[[2015 Qatar ExxonMobil Open|Doha]], Qatar
|style=background:#ccf|Hard
|bgcolor=ffebcd|QF
|6–7<sup>(2–7)</sup>, 7–6<sup>(8–6)</sup>, 6–4
|27
|-
|18.
|{{flagicon|CZE}} Tomáš Berdych
|bgcolor=EEE8AA|6
|bgcolor=D4F1C5|[[2015 Gerry Weber Open|Halle]], Germany
|style=background:#cfc|Grass
|bgcolor=ffebcd|QF
|7–5, 6–7<sup>(8–10)</sup>, 6–3
|27
|-
|19.
|{{flagicon|CAN}} [[Milos Raonic]]
|bgcolor=EEE8AA|10
|bgcolor=E9E9E9|[[2015 Rogers Cup|Montreal]], Canada
|style=background:#ccf|Hard
|bgcolor=afeeee|2R
|7–6<sup>(7–1)</sup>, 7–6<sup>(7–1)</sup>
|23
|-
|20.
|{{flagicon|SUI}} [[Stan Wawrinka]]
|bgcolor=EEE8AA|4
|bgcolor=D4F1C5|[[2015 Swiss Indoors|Basel]], Switzerland
|style=background:#ccf|Hard (i)
|bgcolor=afeeee|1R
|3–6, 7–6<sup>(7–2)</sup>, 6–4
|23
|-
|colspan=8 style=text-align:center|'''[[2017 ATP World Tour|2017]]'''
|-
|21.
|{{flagicon|CRO}} Marin Čilić
|bgcolor=EEE8AA|7
|[[2017 Ricoh Open|Rosmalen]], Netherlands
|style=background:#cfc|Grass
|bgcolor= yellow|SF
|7–6<sup>(7–4)</sup>, 5–7, 7–6<sup>(7–2)</sup>
|24
|}

==Notes==
{{noteslist}}

== See also ==
*[[Croatia Davis Cup team]]
*[[Fastest recorded tennis serves]]

==References==
{{Reflist}}

==External links==
* {{commons category-inline}}
* {{ATP|id=K336}}
* {{ITF profile}}
* {{DavisCup player|id=800192879}}
* {{IMDb name|3598829}}

{{s-start}}
{{s-ach|rec}}
{{Succession box
|before = {{flagicon|USA}} [[Andy Roddick]]
|after = {{flagicon|AUS}} [[Samuel Groth]]
|title = [[Fastest recorded tennis serves|Fastest serve world record holder]]
|years = 6 March 2011 – 12 May 2012
}}
{{s-end}}

{{DEFAULTSORT:Karlovic, Ivo}}
[[Category:1979 births]]
[[Category:Living people]]
[[Category:Croatian male tennis players]]
[[Category:Olympic tennis players for Croatia]]
[[Category:Tennis players from Zagreb]]
[[Category:Tennis players at the 2004 Summer Olympics]]
[[Category:21st-century Croatian sportsmen]]