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 | 588 | 4:21:32 | 4:40:26 | 4:56:29 | 5:13:41 | 5:48:53 | 3:59:09 |
| M18-24 | 13 | 4:00:40 | 4:00:40 | 4:25:09 | 5:04:10 | 5:59:07 | 4:00:40 |
| M25-29 | 59 | 4:29:12 | 4:36:26 | 4:46:53 | 5:23:30 | 6:08:35 | 4:29:12 |
| M30-34 | 116 | 4:30:44 | 4:39:39 | 4:57:53 | 5:09:31 | 5:42:59 | 4:17:56 |
| M35-39 | 186 | 4:23:34 | 4:38:27 | 4:53:04 | 5:14:11 | 5:46:27 | 4:13:09 |
| M40-44 | 123 | 4:34:47 | 4:46:09 | 4:55:50 | 5:13:41 | 5:52:25 | 4:10:25 |
| M45-49 | 54 | 3:59:09 | 4:24:18 | 5:08:23 | 5:13:46 | 5:46:10 | 3:59:09 |
| M50-54 | 19 | 4:47:44 | 4:47:44 | 5:01:36 | 5:16:37 | 5:47:34 | 4:47:44 |
| M55-59 | 8 | 4:53:21 | 4:53:21 | 4:53:21 | 4:54:54 | 5:04:23 | 4:53:21 |
| M60-64 | 6 | 5:24:36 | 5:24:36 | 5:24:36 | 6:24:45 | 6:38:01 | 5:24:36 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 102 | 4:36:36 | 4:55:59 | 5:10:54 | 5:29:14 | 6:21:43 | 4:35:55 |
| F25-29 | 10 | 4:55:34 | 4:55:34 | 4:55:34 | 5:12:06 | 6:33:57 | 4:55:34 |
| F30-34 | 23 | 4:35:55 | 5:43:00 | 5:57:27 | 6:05:59 | 6:34:05 | 4:35:55 |
| F35-39 | 32 | 4:36:36 | 4:55:59 | 5:19:12 | 5:27:29 | 6:15:50 | 4:36:36 |
| F40-44 | 24 | 4:36:42 | 5:02:30 | 5:05:01 | 5:19:38 | 5:51:41 | 4:36:42 |
| F45-49 | 10 | 4:44:55 | 4:44:55 | 4:44:55 | 4:59:01 | 6:09:51 | 4:44:55 |
Source: Seffrin A., Nikolaidis P.T., Andrade M.S., Villiger E., Rosemann T., Weiss K., Ferreira D., Knechtle B. (2026). A dataset of 3.6 million IRONMAN triathlon records with transition times (2002-2026), v4.0.0. Zenodo. CC BY 4.0. doi:10.5281/zenodo.23421027.