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 | 345 | 4:37:09 | 4:59:28 | 5:19:26 | 5:47:48 | 6:39:17 | 4:20:06 |
| M18-24 | 10 | 4:45:50 | 4:45:50 | 4:45:50 | 4:59:28 | 5:28:37 | 4:45:50 |
| M25-29 | 31 | 4:40:06 | 4:45:26 | 5:05:55 | 5:28:19 | 6:05:10 | 4:40:06 |
| M30-34 | 42 | 4:20:06 | 4:50:13 | 4:57:33 | 5:23:20 | 6:21:00 | 4:20:06 |
| M35-39 | 61 | 4:30:19 | 4:56:17 | 5:09:03 | 5:47:19 | 6:32:04 | 4:30:19 |
| M40-44 | 78 | 4:34:22 | 4:52:35 | 5:35:18 | 5:57:15 | 6:44:55 | 4:34:22 |
| M45-49 | 72 | 5:35:46 | 5:40:30 | 5:56:00 | 6:22:09 | 6:57:51 | 5:35:46 |
| M50-54 | 22 | 5:17:06 | 5:25:36 | 5:41:38 | 5:52:51 | 6:35:52 | 5:17:06 |
| M55-59 | 15 | 5:14:57 | 5:14:57 | 5:26:17 | 5:54:56 | 6:42:14 | 5:14:57 |
| M60-64 | 9 | 5:46:47 | 5:46:47 | 5:46:47 | 5:53:44 | 6:29:33 | 5:46:47 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 68 | 5:07:33 | 5:26:50 | 5:52:24 | 6:13:19 | 6:51:11 | 5:07:33 |
| F30-34 | 15 | 5:07:33 | 5:07:33 | 5:23:57 | 5:52:24 | 6:29:09 | 5:07:33 |
| F35-39 | 14 | 5:41:11 | 5:41:11 | 5:56:23 | 6:05:08 | 6:54:43 | 5:41:11 |
| F40-44 | 19 | 6:10:12 | 6:10:12 | 6:15:21 | 6:21:26 | 6:57:08 | 6:10:12 |
| F45-49 | 7 | 6:19:37 | 6:19:37 | 6:19:37 | 6:27:04 | 6:53:11 | 6:19:37 |
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.