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

Timed Finals
Name		Team	Time	Score
1	Sung-Mo CHO anv Guadalajara	anv Guadalajara	15:22.91	20	PB
2	RICARDO MONASTERIO Gator Swim Club	Gator Swim Club	15:24.43	17
3	Peter Vanderkaay Michigan	Michigan	15:27.50	16
4	Chris Thompson Club Wolverine	Club Wolverine	15:30.31	15
5	Justin Mortimer Mission Viejo Nadadores	Mission Viejo Nadadores	15:30.92	14	PB
6	Francis Crippen Unattached	Unattached	15:32.95	13
7	Ryan Lochte Florida	Florida	15:39.15	12	PB
8	Dan Demarco Long Island Aquatic Club	Long Island Aquatic Club	15:47.67	11
9	Zach Anderson BYU - Summer/Club	BYU - Summer/Club	15:57.97	9
10	Andrew HURD Michigan	Michigan	15:58.95	7
11	Ivan Lopez Centro Acuatico Zaragoza	Centro Acuatico Zaragoza	16:01.75	6
12	SCOTT KAUFMANN Florida	Florida	16:03.05	5
13	Christian Sprang GCIT	GCIT	16:03.82	4
14	Lucas Azevedo Irvine Novaquatics	Irvine Novaquatics	16:05.36	3	PB
15	Andres Jimenez Centro Acuatico Zaragoza	Centro Acuatico Zaragoza	16:05.71	2
16	Christopher George Bolles School Sharks	Bolles School Sharks	16:06.04	1	PB
17	Jan WOLFGARTEN Florida	Florida	16:11.06	–
18	J. T. Jones Alabama	Alabama	16:11.57	–
19	Michael Berger Florida	Florida	16:12.57	–	PB
20	Jorge Carral Michigan	Michigan	16:12.78	–
21	Michael Jafari Industry Hills Aquatic Club	Industry Hills Aquatic Club	16:15.18	–	PB
22	Max Jaben Kansas City Blazers	Kansas City Blazers	16:18.30	–
23	ZAYD MA Michigan	Michigan	16:19.16	–
24	Stephen Friedlander Florida	Florida	16:20.48	–
25	BRENDAN NELIGAN Michigan	Michigan	16:21.01	–
26	Matt Biel Terrapins Swim Team	Terrapins Swim Team	16:22.71	–
27	Sean Geary Magnus Aquatic Group	Magnus Aquatic Group	16:23.39	–	PB
28	Brian Hartley Florida	Florida	16:24.71	–
29	Cory Knopp North Baltimore Aquatic Club	North Baltimore Aquatic Club	16:24.73	–
30	Timothy Wera Michigan	Michigan	16:26.08	–
31	Nicolas Zebley North Baltimore Aquatic Club	North Baltimore Aquatic Club	16:27.08	–
32	Clay Bullock Clearwater Aquatic Team	Clearwater Aquatic Team	16:28.04	–
33	Nick Divan Mission Viejo Nadadores	Mission Viejo Nadadores	16:29.63	–
34	Andrew Deters Industry Hills Aquatic Club	Industry Hills Aquatic Club	16:30.01	–
35	Jace Hopper Desert Storm Swimming	Desert Storm Swimming	16:32.14	–
36	Jeremy Gregory Tacoma Swim Club	Tacoma Swim Club	16:32.20	–
37	Matt Dugan Nations Capital Swim Club	Nations Capital Swim Club	16:41.21	–
38	Jason Adler Nations Capital Swim Club	Nations Capital Swim Club	16:42.94	–
39	Robert Seery Long Island Aquatic Club	Long Island Aquatic Club	16:43.74	–
40	Dave Creel Univ of Victoria-Pacific Coast Swimming	Univ of Victoria-Pacific Coast Swimming	16:43.79	–
41	Edward Switaj Unattached	Unattached	16:44.22	–
42	William Antisdale Bellevue Club	Bellevue Club	16:44.73	–
43	Steven McLeod Mission Viejo Nadadores	Mission Viejo Nadadores	16:58.55	–
–	Kerry Tannhauser Unattached	Unattached	NS	–