| Name | Country | Swim | Bike | Run | Finish | Div. Rank | Overall Rank |
|---|---|---|---|---|---|---|---|
| INOUE, KEISUKE | USA | 01:13:04 | 06:40:11 | 04:20:35 | 12:29:16 | 71 | 661 |
| IRELAND, HEATHER | CAN | 01:16:11 | 07:08:33 | 04:39:53 | 13:16:18 | 18 | 982 |
| IRELAND, LEN | CAN | 01:20:07 | 06:16:46 | 04:01:22 | 11:54:54 | 35 | 468 |
| IRVINE, JIM | USA | 01:06:13 | 06:12:54 | 03:59:49 | 11:29:31 | 22 | 325 |
| IRWIN, DARRYL G. | CAN | 00:00:00 | 00:00:00 | 00:00:00 | 00:00:00 | -- | -- |
| ISALY, ALEX | USA | 01:13:55 | 05:44:19 | 05:05:18 | 12:13:59 | 142 | 563 |
| ISRAELSON, EVAN | USA | 01:41:22 | 07:38:22 | 05:01:07 | 14:35:34 | 282 | 1377 |
| IZZO, JR, WILLIAM | USA | 01:21:09 | 07:14:39 | 05:06:51 | 14:03:11 | 102 | 1241 |