| Name | Country | Swim | Bike | Run | Finish | Div. Rank | Overall Rank |
|---|---|---|---|---|---|---|---|
| Ulloa, Cristian | CHL | 01:09:08 | 05:27:56 | 03:58:37 | 10:48:11 | 64 | 307 |
| Umstead, Gail | USA | 01:33:18 | 06:27:16 | 04:41:23 | 13:15:36 | 38 | 1499 |
| Updyke, Lauren | USA | 01:03:08 | 06:01:06 | 04:15:12 | 11:27:48 | 12 | 566 |
| Updyke, Nathan | USA | 01:06:18 | 05:37:49 | 03:54:50 | 10:53:04 | 70 | 338 |
| Upsall, Elizabeth | USA | 01:28:03 | 07:02:17 | 00:00:00 | 00:00:00 | 17 | 2372 |
| Upshaw, Adam | CAN | 01:14:11 | 06:18:52 | 03:58:03 | 11:44:39 | 102 | 705 |
| Urwin, Jeremy | USA | 01:12:23 | 05:20:18 | 04:06:06 | 10:57:29 | 78 | 368 |
| Uybarreta, Thomas | USA | 00:58:04 | 05:51:43 | 04:16:40 | 11:21:07 | 75 | 513 |