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	Thijs van Valkengoed Netherlands	Netherlands	2:13.32	20
2	Scott Usher Unattached	Unattached	2:15.58	17
3	Vlad Polyakov Coral Springs Swim Club	Coral Springs Swim Club	2:16.02	16
4	Michael BROWN Canada	Canada	2:16.21	15
5	Dave Denniston Irvine Novaquatics	Irvine Novaquatics	2:17.44	14	PB
6	Brian JOHNS Canada	Canada	2:19.93	13
7	Sean Quinn North Carolina Aquatic Club	North Carolina Aquatic Club	2:21.10	12
8	Morgan KNABE Canada	Canada	2:21.51	11

B Final
Name		Team	Time	Score
9	Ryan Hurley Nations Capital Swim Club	Nations Capital Swim Club	2:21.49	9
10	Phil Davis Washington - ELIMINATED	Washington - ELIMINATED	2:21.62	7	PB
11	Jacob Mentele Sioux Falls Snowfox	Sioux Falls Snowfox	2:23.96	6
12	JOSHUA GEMMELL Unattached	Unattached	2:24.93	5
13	John Rasmussen Mt Hood Swim Team	Mt Hood Swim Team	2:25.08	4
14	Adam Ware Unattached	Unattached	2:25.77	3
–	Cory Bergman Unattached	Unattached	DQ	–
–	Mark Gangloff Auburn	Auburn	DQ	–

C Final
Name		Team	Time	FINA
17	Matt North Missouri	Missouri	2:22.13	744	PB
18	William Mrazek Florida	Florida	2:25.47	694
19	Corey WELCH Florida	Florida	2:26.71	677
20	Andrew Albright Michigan	Michigan	2:27.17	670
21	Alec Haley Casper Swim Club	Casper Swim Club	2:27.59	665
22	Colin Stalnecker Washington Township Swim Club	Washington Township Swim Club	2:28.54	652
23	Jake Salaz Mt Hood Swim Team	Mt Hood Swim Team	2:31.52	614
–	Neal Rubin Long Island Aquatic Club	Long Island Aquatic Club	DQ	–

Preliminaries
Name		Team	Time	FINA
1	Thijs van Valkengoed Netherlands	Netherlands	2:15.31	862
2	Scott Usher Unattached	Unattached	2:16.90	833
3	Michael BROWN Canada	Canada	2:17.51	822
4	Vlad Polyakov Coral Springs Swim Club	Coral Springs Swim Club	2:17.79	817
5	Morgan KNABE Canada	Canada	2:19.34	790
6	Sean Quinn North Carolina Aquatic Club	North Carolina Aquatic Club	2:20.50	770
7	Dave Denniston Irvine Novaquatics	Irvine Novaquatics	2:20.59	769
8	Brian JOHNS Canada	Canada	2:21.47	755
9	Cory Bergman Unattached	Unattached	2:21.66	752
10	Phil Davis Washington - ELIMINATED	Washington - ELIMINATED	2:22.38	740	PB
11	Tom WILKENS Santa Clara Swim Club	Santa Clara Swim Club	2:22.89	732
12	Ryan Hurley Nations Capital Swim Club	Nations Capital Swim Club	2:22.92	732
13	Jacob Mentele Sioux Falls Snowfox	Sioux Falls Snowfox	2:23.02	730	PB
14	John Rasmussen Mt Hood Swim Team	Mt Hood Swim Team	2:23.45	724
15	JOSHUA GEMMELL Unattached	Unattached	2:23.72	720
16	Mark Gangloff Auburn	Auburn	2:24.66	706
18	Matt North Missouri	Missouri	2:24.90	702
17	Adam Ware Unattached	Unattached	2:24.90	702
19	Andrew Albright Michigan	Michigan	2:26.34	682
20	Corey WELCH Florida	Florida	2:26.80	675
21	Alec Haley Casper Swim Club	Casper Swim Club	2:27.66	664
22	Bradley ALLY Swim Fort Lauderdale	Swim Fort Lauderdale	2:28.00	659
23	CJ Nuess Spokane Sea Serpents	Spokane Sea Serpents	2:28.33	655
24	William Mrazek Florida	Florida	2:28.51	652
25	Chad Thomsen University of Alberta	University of Alberta	2:29.10	645
26	Colin Stalnecker Washington Township Swim Club	Washington Township Swim Club	2:29.30	642
27	Casey Cronin Unattached	Unattached	2:30.86	622	PB
28	Neal Rubin Long Island Aquatic Club	Long Island Aquatic Club	2:31.54	614
29	Jake Salaz Mt Hood Swim Team	Mt Hood Swim Team	2:32.51	602
30	Seok Lee Peddie Aquatic Association	Peddie Aquatic Association	2:32.63	601
31	Jesse Nitz Washington - ELIMINATED	Washington - ELIMINATED	2:33.18	594
32	Williamson Ratliff Florida	Florida	2:33.99	585	PB
33	David Cooper George Mason	George Mason	2:35.65	567
34	Scott Weltz Silicon Valley Aquatic Association	Silicon Valley Aquatic Association	2:35.88	564
–	Jim Kibbe Michigan	Michigan	DQ	–
–	Andrew Pickett Unattached	Unattached	DQ	–
–	Matt Lowe Unattached	Unattached	DQ	–
–	Robert Fischetti Florida	Florida	DQ	–
–	Sean Mahoney Terrapins Swim Team	Terrapins Swim Team	DQ	–
–	Justin Mason Unattached	Unattached	DQ	–
–	Chris Michelmore Unattached	Unattached	NS	–
–	Harvey Beckwith Coral Springs Swim Club	Coral Springs Swim Club	DQ	–
–	LUKE EKHOFF Washington - ELIMINATED	Washington - ELIMINATED	NS	–