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 | 288 | 9:43:54 | 10:17:46 | 10:50:33 | 11:32:50 | 13:17:57 | 9:35:27 |
| M25-29 | 10 | 11:07:16 | 11:07:16 | 11:07:16 | 11:18:50 | 12:25:09 | 11:07:16 |
| M30-34 | 26 | 9:35:27 | 9:43:54 | 9:51:32 | 10:08:21 | 11:20:11 | 9:35:27 |
| M35-39 | 49 | 9:38:10 | 9:55:20 | 10:11:08 | 11:06:37 | 12:57:27 | 9:38:10 |
| M40-44 | 58 | 9:56:23 | 10:17:46 | 10:52:59 | 11:54:29 | 13:30:07 | 9:56:23 |
| M45-49 | 50 | 10:00:08 | 10:46:00 | 10:51:10 | 11:14:29 | 13:33:31 | 10:00:08 |
| M50-54 | 51 | 10:26:09 | 10:55:55 | 11:30:00 | 11:59:55 | 13:21:57 | 10:26:09 |
| M55-59 | 24 | 11:29:18 | 11:33:47 | 12:13:07 | 12:28:29 | 13:56:38 | 11:29:18 |
| M60-64 | 12 | 11:42:41 | 11:42:41 | 12:05:42 | 12:50:33 | 13:57:19 | 11:42:41 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 18 | 12:18:39 | 12:18:39 | 12:25:38 | 12:57:38 | 14:03:43 | 12:18:39 |
| F40-44 | 7 | 13:27:16 | 13:27:16 | 13:27:16 | 13:43:26 | 14:14:09 | 13:27:16 |
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.