Men's 400m Freestyle at the 2003 FINA World Aquatics Championships
Dates	20 July 2003
Winning time	3 minute 42.58 seconds
Medalists
Ian Thorpe    Australia   Grant Hackett    Australia   Dragos Coman    Romania
← 2001 2005 →

The Men's 400 Freestyle event at the 10th FINA World Aquatics Championships swam on 20 July 2003 in Barcelona, Spain.^[1][2]

Prior to the start of the event, the existing World (WR) and Championship (CR) records were:

• WR: 3:40.08 swum by Ian Thorpe (Australia) on 30 July 2002 in Manchester, UK
• CR: 3:40.17 swum by Ian Thorpe (Australia) on 22 July 2001 in Fukuoka, Japan

Place	Swimmer	Nation	Time	Notes
1	Ian Thorpe	Australia	3:42.58
2	Grant Hackett	Australia	3:45.11
3	Dragoș Coman	Romania	3:46.87
4	Massimiliano Rosolino	Italy	3:47.44
5	Klete Keller	United States	3:47.70
6	Yuri Prilukov	Russia	3:48.50
7	Chad Carvin	United States	3:50.36
8	Graeme Smith	United Kingdom	3:51.83

Rank	Heat	Lane	Swimmer	Nation	Time	Notes
1	8	4	Ian Thorpe	Australia	3:47.44	q
2	7	4	Grant Hackett	Australia	3:48.35	q
3	8	3	Yuri Prilukov	Russia	3:48.49	q
4	7	5	Massimiliano Rosolino	Italy	3:49.59	q
5	8	5	Klete Keller	United States	3:49.85	q
6	7	3	Graeme Smith	United Kingdom	3:49.92	q
7	6	3	Chad Carvin	United States	3:50.28	q
8	6	5	Dragoș Coman	Romania	3:50.29	q
9	6	7	Oussama Mellouli	Tunisia	3:52.04
10	8	8	Sergiy Fesenko	Ukraine	3:52.24
11	7	7	Nikolaos Xylouris	Greece	3:52.34
12	8	2	Nicolas Rostoucher	France	3:52.53
13	6	1	Alexey Filipets	Russia	3:52.93
14	6	2	Mark Johnston	Canada	3:53.06
14	8	6	Rick Say	Canada	3:53.06
16	6	4	Emiliano Brembilla	Italy	3:53.43
17	7	6	Athanasios Oikonomou	Greece	3:54.17
18	8	1	Przemysław Stańczyk	Poland	3:54.68
19	7	2	David Davies	United Kingdom	3:54.70
20	7	8	Dzmitry Koptur	Belarus	3:54.87
21	4	8	Bojan Zdešar	Slovenia	3:55.07
22	6	6	Shunichi Fujita	Japan	3:55.13
23	5	1	Lin Zhang	China	3:55.41
24	8	7	Ihor Chervynskyi	Ukraine	3:55.81
25	6	8	Shai Livnat	Israel	3:56.33
26	5	3	Shilo Ayalon	Israel	3:57.79
27	5	8	Gian Carlo Zolezzi	Chile	3:57.92
28	5	6	Luis Monteiro	Portugal	3:58.57
29	5	5	Felipe Araujo	Brazil	3:58.74
30	5	2	Bruno Bonfim	Brazil	3:59.57
31	7	1	Cheng Yu	China	3:59.93
32	5	4	Erwin Maldonado	Venezuela	4:00.47
33	4	5	Victor Rogut	Moldova	4:01.46
34	3	4	Cameron Gibson	New Zealand	4:02.87
35	4	4	Raouf Benabid	Algeria	4:02.99
36	4	3	Juan Pablo Valdivieso	Peru	4:03.83
37	3	6	Anovar Bennaceur	Tunisia	4:04.32
38	3	5	Dean Kent	New Zealand	4:04.60
39	3	1	Igor Erhartic	Yugoslavia	4:05.38
40	3	7	Yi-Khy Saw	Malaysia	4:05.87
41	5	7	Gerry Strasser	Switzerland	4:06.94
42	4	1	Emanuele Nicolini	San Marino	4:08.35
43	3	2	Kwok Leung Chung	Hong Kong	4:08.49
44	2	4	Timur Irgashev	Uzbekistan	4:09.83
45	2	3	Jonathan Mauri	Costa Rica	4:11.13
46	3	3	Mohammad Naeem Masri	Syria	4:11.49
47	4	7	Petr Vasilev	Uzbekistan	4:11.54
48	3	8	Carlos Castro	Chile	4:11.68
49	2	6	Youssef Hafdi	Morocco	4:12.70
50	2	2	Rehan Poncha	India	4:14.22
51	4	6	Ronald Cowen	Bermuda	4:14.39
52	2	1	Rony Bakale	Republic of the Congo	4:23.67
53	1	6	Seung Gin Lee	Northern Mariana Islands	4:25.25
54	1	5	Neil Agius	Malta	4:25.44
55	1	4	Anas Samir Abo Yousif	Qatar	4:26.27
56	1	3	Mumtaz Ahmed	Pakistan	4:30.26
57	2	5	Vasilii Danilov	Kyrgyzstan	4:30.52
58	1	2	Steven Mangroo	Seychelles	4:31.41
58	2	7	Sergey Dyachkov	Azerbaijan	4:31.41
60	2	8	Barnsley Albert	Seychelles	4:31.51
–	–	-	Mihail Alexandrov	Bulgaria	DNS
–	–	-	Trevor Kakunze	Burundi	DNS

• Worlds 2003: Men's 400 Free results from swimrankings.net