| Name | Country | Swim | Bike | Run | Finish | Div. Rank | Overall Rank |
|---|---|---|---|---|---|---|---|
| Ihara, Ko | USA | 00:38:45 | 02:54:42 | 01:44:00 | 05:21:51 | 29 | 220 |
| Illsley, Douglas | USA | 00:42:00 | 03:52:27 | 02:22:31 | 07:19:49 | 7 | 844 |
| Inden, Molly | USA | 00:39:15 | 03:36:30 | 02:39:46 | 07:00:28 | 34 | 788 |
| Ingham, David | USA | 00:47:39 | 03:09:24 | 02:28:22 | 06:33:04 | 61 | 671 |
| Inman, Matthew | USA | 00:39:00 | 03:18:06 | 01:57:47 | 06:01:32 | 55 | 485 |
| Inouye, Christopher | USA | 00:36:25 | 02:57:30 | 02:08:03 | 05:51:29 | 49 | 429 |
| Isakov, Andre | CAN | 00:31:12 | 02:58:42 | 01:44:28 | 05:17:27 | 15 | 185 |
| Isidro, Oliver | USA | 00:42:24 | 03:07:06 | 02:16:01 | 06:09:59 | 93 | 543 |
| Iversen, Deani | USA | 00:00:00 | 00:00:00 | 00:00:00 | 00:00:00 | -- | -- |