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 | 208 | 10:55:25 | 11:44:39 | 12:17:50 | 13:02:09 | 14:50:23 | 9:52:34 |
| M30-34 | 20 | 11:12:41 | 11:12:41 | 11:23:03 | 12:06:30 | 13:19:24 | 11:12:41 |
| M35-39 | 34 | 11:00:37 | 11:19:32 | 12:32:52 | 12:50:50 | 14:30:30 | 11:00:37 |
| M40-44 | 50 | 9:52:34 | 11:49:04 | 12:41:04 | 13:35:31 | 14:48:00 | 9:52:34 |
| M45-49 | 48 | 10:55:25 | 12:00:27 | 12:31:30 | 13:05:29 | 15:06:53 | 10:55:25 |
| M50-54 | 31 | 11:26:13 | 11:40:12 | 11:50:22 | 12:33:46 | 15:06:41 | 11:26:13 |
| M55-59 | 12 | 11:44:39 | 11:44:39 | 11:51:56 | 13:07:46 | 16:12:57 | 11:44:39 |
| M60-64 | 7 | 12:31:17 | 12:31:17 | 12:31:17 | 13:51:23 | 14:33:37 | 12:31:17 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 17 | 12:13:27 | 12:13:27 | 13:14:01 | 13:24:35 | 15:41:35 | 12:13:27 |
| F50-54 | 5 | 13:44:15 | 13:44:15 | 13:44:15 | 13:44:15 | 16:37:42 | 13:44:15 |
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.