How to read it: in each row, the time under "Top 10%" is the time of the slowest athlete who still made the fastest 10% of the age group. Beat that time and you are in. Age groups with fewer than 5 finishers are omitted. Finishers only.
Men
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 3,256 | 4:16:52 | 4:34:25 | 4:41:40 | 4:51:24 | 5:13:57 | 3:52:35 |
| MPRO | 44 | 3:52:35 | 3:56:45 | 4:00:18 | 4:03:09 | 4:11:18 | 3:52:35 |
| M18-24 | 117 | 4:19:21 | 4:22:17 | 4:26:10 | 4:36:12 | 4:54:38 | 4:15:48 |
| M25-29 | 272 | 4:18:37 | 4:28:22 | 4:31:23 | 4:37:33 | 4:50:11 | 4:15:38 |
| M30-34 | 454 | 4:23:21 | 4:32:52 | 4:37:58 | 4:43:49 | 4:59:41 | 4:18:05 |
| M35-39 | 519 | 4:30:42 | 4:35:26 | 4:40:11 | 4:45:42 | 5:01:28 | 4:25:01 |
| M40-44 | 538 | 4:33:34 | 4:41:45 | 4:49:24 | 4:57:50 | 5:12:17 | 4:26:15 |
| M45-49 | 507 | 4:36:24 | 4:47:32 | 4:55:18 | 5:03:32 | 5:22:30 | 4:28:47 |
| M50-54 | 354 | 4:41:21 | 4:56:07 | 5:00:03 | 5:09:15 | 5:24:09 | 4:34:55 |
| M55-59 | 214 | 4:50:45 | 5:03:58 | 5:12:07 | 5:18:51 | 5:41:03 | 4:46:23 |
| M60-64 | 119 | 5:05:49 | 5:20:05 | 5:22:56 | 5:37:27 | 6:00:51 | 5:05:17 |
| M65-69 | 72 | 5:25:05 | 5:40:43 | 5:43:54 | 5:55:51 | 6:22:29 | 5:25:05 |
| M70-74 | 35 | 5:24:58 | 5:43:37 | 6:17:51 | 6:29:53 | 7:07:55 | 5:24:58 |
| M75-79 | 7 | 6:32:41 | 6:32:41 | 6:32:41 | 6:59:53 | 7:17:51 | 6:32:41 |
Source: Seffrin A., Nikolaidis P.T., Andrade M.S., Villiger E., Rosemann T., Weiss K., Ferreira D., Knechtle B. (2026). A dataset of 2.7 million IRONMAN triathlon records with transition times (2002-2026), v3.0.0. Zenodo. CC BY 4.0. doi:10.5281/zenodo.22097794.