| Name | Country | Swim | Bike | Run | Finish | Div. Rank | Overall Rank |
|---|---|---|---|---|---|---|---|
| IANNITELLI, RALPH | CAN | 00:33:42 | 02:46:19 | 01:52:16 | 05:16:34 | 21 | 251 |
| IMBODEN, BRANDON | USA | 00:31:14 | 03:23:40 | 02:47:11 | 06:49:49 | 94 | 703 |
| INGSTAD, BROGAN | USA | 00:38:32 | 03:02:14 | 02:15:35 | 06:00:27 | 22 | 504 |
| IRBY, DELLA | USA | 00:35:12 | 02:41:46 | 01:43:52 | 05:04:05 | 3 | 181 |
| IRIBARREN, YOLANDA | MEX | 00:00:00 | 00:00:00 | 00:00:00 | 00:00:00 | -- | -- |
| IRWIN, MICHAEL | USA | 00:28:48 | 02:48:53 | 01:55:36 | 05:17:15 | 39 | 258 |
| ISON, MATTHEW | USA | 00:29:22 | 02:32:08 | 01:38:26 | 04:42:58 | 4 | 79 |