| 2004 Catalina Challenge Results | ||
| OC1 Open Men | ||
| 1. Danny Ching/Dan Barbosa | 5:18:28 | |
| 2. Nathan Shore/Steve Sinkus | 5:20:28 | |
| 3. Chris Cornejo/George Leslie | 5:25:15 | |
| 4. Josh Crayton/Bubba Parker | 5:27:29 | |
| 5. Eric Starnes/Adam Mermel | 5:37:17 | |
| 6. Bob Woodman/Glen Bond | 5:38:24 | |
| 7. Casey Owens/Dale Hernandez | 5:39:14 | |
| 8. Zach Lenz/Luke Evslin | 5:48:43 | |
| 9. Ruben Ruiz/Joe Bober | 5:48:50 | |
| 10. Lindsey Richman/Greg Shaghoian | 5:58:16 | |
| 11. Alan Goto/Tom Aukai | 5:59:00 | |
| 12. Bill O'Rourke/Scott Murdock | 6:06:42 | |
| OC1 Open Women | ||
| 1. Jill Schooler/Jeane Barrett | 5:59:44 | *New Record |
| 2. Aimee Spector/Sarah Gilman | 6:19:32 | |
| 3. Patti Lawson/Sandra Kruecki | 6:36:20 | |
| OC1 Master Men | ||
| 1. Rich Long/Jack Kraus | 5:35:25 | |
| 2. Tim Dougherty/Craig Williams | 5:42:17 | |
| OC1 California Open Men | ||
| 1. Danny Ching/Dan Barbosa | 5:18:28 | |
| 2. Nathan Shore/Steve Sinkus | 5:20:28 | |
| 3. Josh Crayton/Bubba Parker | 5:27:29 | |
| 4. Rich Long/Jack Kraus | 5:35:25 | |
| 5. Eric Starnes/Adam Mermel | 5:37:17 | |
| 6. Casey Owens/Dale Hernandez | 5:39:14 | |
| 7. Tim Dougherty/Craig Williams | 5:42:17 | |
| 8. Ruben Ruiz/Joe Bober | 5:48:50 | |
| 8. Lindsey Richman/Greg Shaghoian | 5:58:16 | |
| 9. Bill O'Rourke/Scott Murdock | 6:06:42 | |
| OC1 Open Mixed | ||
| 1. Ron Cotteen/Shea Cotteen | 6:42:18 | |
| Surf Ski | ||
| 1. Jim VitaleTom Klosterman | 5:40:06 | |
| OC2 Open Men | ||
| 1. Jimmy Terrell/Devlin Murphy/Scott Granger/Charlie Banfield | 5:03:51 | |
| 2. Chris O'Kieffe/Chris Stolba/Andy Lietz/Cliff Meidl | 5:05:46 | |
| 3. Cary Acord/Barry Franks/Ryan Bailey/Dan Camp | 5:06:41 | |
| 4. Matt Muirhead/Dave Loustalot/Walter Kamfonik/Scott Bryan | 5:17:28 | |
| 5. Jimmy Spoto/Mously Palacious/AJ Buffalino/Nick Bersudskiy | 5:21:00 | |
| 6. Ron Long/Mike Gehrt/Shaun Evola/Brian Jeffries | 5:41:19 | |
| OC2 Open Women | ||
| 1. Phaedra Arellano/Tresa Connelly/Jojo Toppner/Pua Scott | 5:54:45 | |
| 2. Peggy Rupe/Laurie Parker/Kather Tirheimer/Agnes Regesnecky | 6:01:23 | |
| OC2 Open Mixed | ||
| 1. Steve Ayers/Rob Rohas/Kristin Vallette/Julie Wolfe | 5:29:15 | |
| 2. Yvette Dominguez/Linda Oba/Chris Wong/Melvin Josafat | 5:43:34 | |
| 3. Allison Kahanamoku/Angela Gaines/Beth Dressel/Scott Correll | 5:54:28 | |
| Overall | ||
| 1. Jimmy Terrell/Devlin Murphy/Scott Granger/Charlie Banfield | 5:03:51 | |
| 2. Chris O'Kieffe/Chris Stolba/Andy Lietz/Cliff Meidl | 5:05:46 | |
| 3. Cary Acord/Barry Franks/Ryan Bailey/Dan Camp | 5:06:41 | |
| 4. Matt Muirhead/Dave Loustalot/Walter Kamfonik/Scott Bryan | 5:17:28 | |
| 5. Danny Ching/Dan Barbosa | 5:18:28 | |
| 6. Nathan Shore/Steve Sinkus | 5:20:28 | |
| 7. Jimmy Spoto/Mously Palacious/AJ Buffalino/Nick Bersudskiy | 5:21:00 | |
| 8. Chris Cornejo/George Leslie | 5:25:15 | |
| 9. Josh Crayton/Bubba Parker | 5:27:29 | |
| 10. Steve Ayers/Rob Rohas/Kristin Vallette/Julie Wolfe | 5:29:15 | |
| 11. Rich Long/Jack Kraus | 5:35:25 | |
| 12. Eric Starnes/Adam Mermel | 5:37:17 | |
| 13. Bob Woodman/Glen Bond | 5:38:24 | |
| 14. Casey Owens/Dale Hernandez | 5:39:14 | |
| 15. Jim Vitale/Tom Klosterman | 5:40:06 | |
| 16. Tim Dougherty/Craig Williams | 5:42:17 | |
| 17. Ron Long/Mike Gehrt/Shaun Evola/Brian Jeffries | 5:41:19 | |
| 18. Yvette Dominguez/Linda Oba/Chris Wong/Melvin Josafat | 5:43:34 | |
| 19. Zach Lenz/Luke Evslin | 5:48:43 | |
| 20. Ruben Ruiz/Joe Bober | 5:48:50 | |
| 21. Allison Kahanamoku/Angela Gaines/Beth Dressel/Scott Correll | 5:54:28 | |
| 22. Phaedra Arellano/Tresa Connelly/Jojo Toppner/Pua Scott | 5:54:45 | |
| 23. Lindsey Richman/Greg Shaghoian | 5:58:16 | |
| 24. Alan Goto/Tom Aukai | 5:59:00 | |
| 25. Jill Schooler/Jeane Barrett | 5:59:44 | |
| 26. Peggy Rupe/Laurie Parker/Kather Tirheimer/Agnes Regesnecky | 6:01:23 | |
| 27. Bill O'Rourke/Scott Murdock | 6:06:42 | |
| 28. Aimee Spector/Sarah Gilman | 6:19:32 | |
| 29. Patti Lawson/Sandra Kruecki | 6:36:20 | |
| 30 .Ron Cotteen/Shea Cotteen | 6:42:18 | |