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 | 78 | 4:25:27 | 4:35:44 | 4:59:21 | 5:35:56 | 6:20:36 | 4:25:27 |
| M18-24 | 8 | 4:59:21 | 4:59:21 | 4:59:21 | 5:17:25 | 5:59:01 | 4:59:21 |
| M25-29 | 14 | 4:54:02 | 4:54:02 | 5:02:30 | 5:45:59 | 6:19:19 | 4:54:02 |
| M30-34 | 12 | 5:02:49 | 5:02:49 | 5:05:49 | 5:48:01 | 6:18:55 | 5:02:49 |
| M35-39 | 17 | 4:32:53 | 4:32:53 | 4:49:46 | 5:20:53 | 6:33:46 | 4:32:53 |
| M40-44 | 9 | 4:25:27 | 4:25:27 | 4:25:27 | 4:26:57 | 6:03:10 | 4:25:27 |
| M45-49 | 9 | 4:56:38 | 4:56:38 | 4:56:38 | 5:50:24 | 6:36:12 | 4:56:38 |
| M50-54 | 5 | 5:41:52 | 5:41:52 | 5:41:52 | 5:41:52 | 6:56:57 | 5:41:52 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 29 | 5:08:52 | 5:34:27 | 5:38:58 | 6:02:37 | 6:44:16 | 5:08:52 |
| F25-29 | 8 | 6:02:37 | 6:02:37 | 6:02:37 | 6:13:24 | 6:40:07 | 6:02:37 |
| F30-34 | 8 | 5:38:58 | 5:38:58 | 5:38:58 | 6:13:01 | 6:44:16 | 5:38:58 |
| F35-39 | 6 | 5:08:52 | 5:08:52 | 5:08:52 | 5:34:27 | 6:32:22 | 5:08:52 |
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.