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 | 246 | 9:35:02 | 10:29:17 | 10:56:57 | 11:48:31 | 13:45:26 | 9:27:43 |
| M25-29 | 6 | 10:14:23 | 10:14:23 | 10:14:23 | 10:58:28 | 11:41:03 | 10:14:23 |
| M30-34 | 18 | 9:40:11 | 9:40:11 | 10:06:54 | 10:18:10 | 12:21:06 | 9:40:11 |
| M35-39 | 36 | 10:29:17 | 11:01:23 | 11:15:00 | 11:46:08 | 13:24:51 | 10:29:17 |
| M40-44 | 56 | 9:31:39 | 10:31:31 | 10:56:57 | 11:55:53 | 13:56:09 | 9:31:39 |
| M45-49 | 69 | 9:27:43 | 10:12:36 | 10:37:51 | 12:07:37 | 13:45:42 | 9:27:43 |
| M50-54 | 44 | 10:31:43 | 10:53:54 | 11:25:12 | 12:23:04 | 13:44:10 | 10:31:43 |
| M55-59 | 10 | 11:32:07 | 11:32:07 | 11:32:07 | 12:36:20 | 15:17:20 | 11:32:07 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 26 | 10:37:09 | 11:12:24 | 11:21:05 | 12:25:56 | 13:03:40 | 10:37:09 |
| F35-39 | 5 | 12:25:56 | 12:25:56 | 12:25:56 | 12:25:56 | 12:53:48 | 12:25:56 |
| F40-44 | 6 | 11:21:05 | 11:21:05 | 11:21:05 | 11:40:43 | 12:59:45 | 11:21:05 |
| F45-49 | 6 | 12:57:21 | 12:57:21 | 12:57:21 | 13:03:40 | 13:07:41 | 12:57:21 |
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.