2003 U.S. Open Swimming Championship

- Event
- 50 Free
- 100 Free
- 200 Free
- 400 Free
- 800 Free
- 1500 Free
- 100 Back
- 200 Back
- 100 Breast
- 200 Breast
- 100 Fly
- 200 Fly
- 200 IM
- 400 IM
- 400 Free Relay
- 800 Free Relay
- 400 Medley Relay
- Gender
- Men
- Women

A Final
Name		Team	Time	Score
1	Brian JOHNS Canada	Canada	4:18.91	20
2	Takahiro MORI Japan	Japan	4:20.60	17
3	Dean Kent New Zealand	New Zealand	4:25.14	16
4	Tom WILKENS Santa Clara Swim Club	Santa Clara Swim Club	4:26.26	15
5	Ryan Lochte Florida	Florida	4:27.16	14	PB
6	Chuck Sayao Michigan	Michigan	4:27.70	13
7	CJ Nuess Spokane Sea Serpents	Spokane Sea Serpents	4:29.36	12	PB
8	Dan Shevchik Irvine Novaquatics	Irvine Novaquatics	4:35.38	11	PB

B Final
Name		Team	Time	Score
9	Susumu TABUCHI Japan	Japan	4:24.59	9
10	BRENDAN NELIGAN Michigan	Michigan	4:31.14	7
11	Eric Donnelly Gator Swim Club	Gator Swim Club	4:31.45	6
12	Agustin Magruder Greenwood Tiger Sharks	Greenwood Tiger Sharks	4:32.54	5	PB
13	James Wike New Trier Aquatics	New Trier Aquatics	4:36.64	4
14	Jaffrey Clark Unattached	Unattached	4:36.68	3
15	Scott Lathrope Orinda Aquatics	Orinda Aquatics	4:40.04	2
–	Bobby Langsett Swim Fort Lauderdale	Swim Fort Lauderdale	DQ	–

C Final
Name		Team	Time	FINA
17	Justin Mortimer Mission Viejo Nadadores	Mission Viejo Nadadores	4:31.55	774	PB
18	Tim Norton George Mason	George Mason	4:36.35	734
19	Nicholas Douville Michigan	Michigan	4:36.79	730
20	Dan Demarco Long Island Aquatic Club	Long Island Aquatic Club	4:39.44	710
21	Pablo Marmolejo Centro Acuatico Zaragoza	Centro Acuatico Zaragoza	4:40.01	706
22	Elliott Macdonald MANTA SWIM CLUB	MANTA SWIM CLUB	4:40.18	704
23	T. J. Southmayd Suburban Seahawks Club	Suburban Seahawks Club	4:41.84	692
–	Brian Hartley Florida	Florida	DQ	–

Preliminaries
Name		Team	Time	FINA
1	Brian JOHNS Canada	Canada	4:24.54	837
2	Takahiro MORI Japan	Japan	4:24.93	833
3	Chuck Sayao Michigan	Michigan	4:26.77	816
4	Dean Kent New Zealand	New Zealand	4:28.10	804
5	Tom WILKENS Santa Clara Swim Club	Santa Clara Swim Club	4:29.72	789
6	Dan Shevchik Irvine Novaquatics	Irvine Novaquatics	4:30.42	783	PB
7	CJ Nuess Spokane Sea Serpents	Spokane Sea Serpents	4:30.72	781	PB
8	Ryan Lochte Florida	Florida	4:30.81	780
9	Susumu TABUCHI Japan	Japan	4:30.98	778
10	BRENDAN NELIGAN Michigan	Michigan	4:31.10	777
11	Eric Donnelly Gator Swim Club	Gator Swim Club	4:33.69	756
12	Scott Lathrope Orinda Aquatics	Orinda Aquatics	4:34.01	753
13	Agustin Magruder Greenwood Tiger Sharks	Greenwood Tiger Sharks	4:35.67	739	PB
14	Jaffrey Clark Unattached	Unattached	4:35.85	738
15	Bobby Langsett Swim Fort Lauderdale	Swim Fort Lauderdale	4:35.97	737	PB
16	James Wike New Trier Aquatics	New Trier Aquatics	4:36.04	736
17	Nicholas Douville Michigan	Michigan	4:36.60	732
18	Michael BROWN Canada	Canada	4:37.28	727
19	Justin Mortimer Mission Viejo Nadadores	Mission Viejo Nadadores	4:37.39	726
20	Tim Norton George Mason	George Mason	4:37.65	724
21	Elliott Macdonald MANTA SWIM CLUB	MANTA SWIM CLUB	4:38.64	716
22	Dan Demarco Long Island Aquatic Club	Long Island Aquatic Club	4:39.17	712
23	Matthew Ferrarelli Mizzou Swim Team	Mizzou Swim Team	4:40.20	704
24	T. J. Southmayd Suburban Seahawks Club	Suburban Seahawks Club	4:40.63	701
25	Pablo Marmolejo Centro Acuatico Zaragoza	Centro Acuatico Zaragoza	4:40.82	699
26	Brian Hartley Florida	Florida	4:41.21	697
27	Michael Jacobsson Dallas Mustangs	Dallas Mustangs	4:41.46	695
28	Tim Hansen Alabama	Alabama	4:41.80	692
29	Jan WOLFGARTEN Florida	Florida	4:42.54	687
30	Robert Fischetti Florida	Florida	4:42.60	686
31	Jeremy Gregory Tacoma Swim Club	Tacoma Swim Club	4:43.12	683
32	Dave Creel Univ of Victoria-Pacific Coast Swimming	Univ of Victoria-Pacific Coast Swimming	4:44.22	675
33	Perry Bullock Swim Fort Lauderdale	Swim Fort Lauderdale	4:44.76	671
34	SCOTT KAUFMANN Florida	Florida	4:45.04	669
35	Matt Scanlan Bakersfield Aquatic Club	Bakersfield Aquatic Club	4:45.37	667
36	Scott Mulleney Florida	Florida	4:46.69	657	PB
37	BEN WORBY Alabama	Alabama	4:47.84	650
38	Sean Quinn North Carolina Aquatic Club	North Carolina Aquatic Club	4:49.61	638
39	William Mrazek Florida	Florida	4:50.09	635
40	John Foster Irvine Novaquatics	Irvine Novaquatics	4:51.15	628
–	Mark Gangloff Auburn	Auburn	DQ	–
–	Jim Kibbe Michigan	Michigan	DQ	–
–	Bradley ALLY Swim Fort Lauderdale	Swim Fort Lauderdale	DQ	–
–	Louis Vayo FULLERTON AQUATICS SPORTS TEAM	FULLERTON AQUATICS SPORTS TEAM	DQ	–