Swimming at the 2004 Summer Olympics – Men's 100 metre butterfly

The men's 100 metre butterfly event at the 2004 Olympic Games was contested at the Olympic Aquatic Centre of the Athens Olympic Sports Complex in Athens, Greece on August 19 and 20.<ref name="Swimming schedule">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

U.S. swimmer Michael Phelps broke an Olympic record of 51.25 to claim his fifth gold medal, edging out his teammate and world record holder Ian Crocker by four hundredths of a second (0.04). Meanwhile, Ukraine's Andriy Serdinov earned a bronze in a European record of 51.36.<ref>Template:Cite news</ref><ref>Template:Cite news</ref> Earlier in the semifinals, Serdinov blasted a new Olympic record, previously set by Australia's Geoff Huegill in Sydney four years ago, with a time of 51.74. One heat later, Phelps stopped the clock at 51.61 to lower the record by 0.13 of a second.<ref>Template:Cite news</ref>

Records

Prior to this competition, the existing world and Olympic records were as follows.

The following new world and Olympic records were set during this competition.

Date	Event	Name	Nationality	Time	Record
August 19	Semifinal 1	Andriy Serdinov	Template:FlagIOC	51.74	Template:OlyR
August 19	Semifinal 2	Michael Phelps	Template:FlagIOC	51.61	Template:OlyR
August 20	Final	Michael Phelps	Template:FlagIOC	51.25	Template:OlyR

Results

Heats

Rank	Heat	Lane	Name	Nationality	Time	Notes
1	8	4	Ian Crocker	Template:FlagIOC	52.03	Q
2	6	4	Andriy Serdinov	Template:FlagIOC	52.05	Q
3	7	4	Michael Phelps	Template:FlagIOC	52.35	Q
4	5	4	Milorad Čavić	Template:FlagIOC	52.44	Q
5	7	7	Geoff Huegill	Template:FlagIOC	52.54	Q
6	7	1	Duje Draganja	Template:FlagIOC	52.56	Q
7	7	5	Thomas Rupprath	Template:FlagIOC	52.57	Q
8	8	3	Franck Esposito	Template:FlagIOC	52.61	Q
9	8	5	Igor Marchenko	Template:FlagIOC	52.62	Q
10	7	6	Takashi Yamamoto	Template:FlagIOC	52.71	Q
11	8	2	Gabriel Mangabeira	Template:FlagIOC	52.76	Q
12	7	2	James Hickman	Template:FlagIOC	52.91	Q
13	6	3	Yevgeny Korotyshkin	Template:FlagIOC	52.93	Q
14	8	6	Mike Mintenko	Template:FlagIOC	52.96	Q
15	7	3	Corney Swanepoel	Template:FlagIOC	53.07	Q
16	8	7	Helge Meeuw	Template:FlagIOC	53.11	Q
17	8	8	Kaio Almeida	Template:FlagIOC	53.22
18	5	1	Ryan Pini	Template:FlagIOC	53.26
19	6	6	Joris Keizer	Template:FlagIOC	53.41
20	8	1	Adam Pine	Template:FlagIOC	53.45
21	6	2	Denys Sylantyev	Template:FlagIOC	53.46
22	6	5	Todd Cooper	Template:FlagIOC	53.48
23	6	1	Mattia Nalesso	Template:FlagIOC	53.49
24	5	7	Simão Morgado	Template:FlagIOC	53.53
25	5	5	Frederick Bousquet	Template:FlagIOC	53.63
26	5	6	Pavel Lagoun	Template:FlagIOC	53.87
27	7	8	Ioan Gherghel	Template:FlagIOC	53.89
28	4	4	Jere Hård	Template:FlagIOC	54.02
29	4	6	Peter Mankoč	Template:FlagIOC	54.14
30	6	8	Eugene Botes	Template:FlagIOC	54.15
31	4	5	Sotirios Pastras	Template:FlagIOC	54.20
32	5	2	Erik Andersson	Template:FlagIOC	54.26
33	6	7	Joshua Ilika Brenner	Template:FlagIOC	54.29
34	5	3	Zsolt Gáspár	Template:FlagIOC	54.43
35	4	1	Rimvydas Šalčius	Template:FlagIOC	54.46
36	5	8	Luis Rojas	Template:FlagIOC	54.58
37	4	2	Camilo Becerra	Template:FlagIOC	54.71
38	3	5	Jeong Doo-hee	Template:FlagIOC	54.76
39	2	3	Michal Rubáček	Template:FlagIOC	54.87
40	4	7	Georgi Palazov	Template:FlagIOC	54.91
41	3	7	Rustam Khudiyev	Template:FlagIOC	55.03
42	3	2	Hjörtur Már Reynisson	Template:FlagIOC	55.12
43	4	3	Wu Peng	Template:FlagIOC	55.17
44	3	4	Eduardo Germán Otero	Template:FlagIOC	55.24
45	3	3	Aleksandar Miladinovski	Template:FlagIOC	55.71
46	2	6	Oleg Lyashko	Template:FlagIOC	55.90
47	3	1	Juan Pablo Valdivieso	Template:FlagIOC	55.98
48	3	6	Aghiles Slimani	Template:FlagIOC	56.22
49	3	8	Onur Uras	Template:FlagIOC	56.37
50	2	5	Nicholas Rees	Template:FlagIOC	56.39
51	2	8	Gordon Touw Ngie Tjouw	Template:FlagIOC	56.68
52	2	2	Conrad Francis	Template:FlagIOC	56.80
53	4	8	Andrejs Dūda	Template:FlagIOC	56.81
54	2	4	Andy Wibowo	Template:FlagIOC	56.86
55	2	7	Daniel O'Keeffe	Template:FlagIOC	57.39
56	2	1	Davy Bisslik	Template:FlagIOC	57.85
57	1	5	Luis Matias	Template:FlagIOC	58.92
58	1	4	Fernando Medrano Medina	Template:FlagIOC	1:00.91
59	1	3	Rad Aweisat	Template:FlagIOC	1:01.60

Semifinals

Semifinal 1

Rank	Lane	Name	Nationality	Time	Notes
1	4	Andriy Serdinov	Template:FlagIOC	51.74	Q, Template:OlyR
2	3	Duje Draganja	Template:FlagIOC	52.74	Q
3	2	Takashi Yamamoto	Template:FlagIOC	52.81
4	6	Franck Esposito	Template:FlagIOC	52.88
5	1	Mike Mintenko	Template:FlagIOC	52.89
6	8	Helge Meeuw	Template:FlagIOC	52.99
7	7	James Hickman	Template:FlagIOC	53.10
8	5	Milorad Čavić	Template:FlagIOC	53.12

Semifinal 2

Rank	Lane	Name	Nationality	Time	Notes
1	5	Michael Phelps	Template:FlagIOC	51.61	Q, Template:OlyR
2	4	Ian Crocker	Template:FlagIOC	51.83	Q
3	2	Igor Marchenko	Template:FlagIOC	52.32	Q
4	7	Gabriel Mangabeira	Template:FlagIOC	52.33	Q
5	3	Geoff Huegill	Template:FlagIOC	52.64	Q
6	6	Thomas Rupprath	Template:FlagIOC	52.71	Q
7	1	Yevgeny Korotyshkin	Template:FlagIOC	52.85
8	8	Corney Swanepoel	Template:FlagIOC	52.99

Final

Rank	Lane	Name	Nationality	Time	Notes
Template:Gold01	4	Michael Phelps	Template:FlagIOC	51.25	Template:OlyR
Template:Silver02	3	Ian Crocker	Template:FlagIOC	51.29
Template:Bronze03	5	Andriy Serdinov	Template:FlagIOC	51.36	EU
4	1	Thomas Rupprath	Template:FlagIOC	52.27
5	6	Igor Marchenko	Template:FlagIOC	52.32
6	2	Gabriel Mangabeira	Template:FlagIOC	52.34
7	8	Duje Draganja	Template:FlagIOC	52.46
8	7	Geoff Huegill	Template:FlagIOC	52.56