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 | 521 | 4:58:51 | 5:18:31 | 5:28:30 | 5:48:51 | 6:26:52 | 4:49:13 |
| M18-24 | 16 | 4:57:40 | 4:57:40 | 5:18:31 | 5:23:18 | 6:12:57 | 4:57:40 |
| M25-29 | 45 | 4:49:13 | 4:58:15 | 5:07:10 | 5:28:08 | 6:12:35 | 4:49:13 |
| M30-34 | 73 | 5:00:28 | 5:03:39 | 5:19:09 | 5:43:40 | 6:24:22 | 5:00:28 |
| M35-39 | 89 | 4:58:51 | 5:20:19 | 5:30:34 | 5:47:30 | 6:22:31 | 4:58:51 |
| M40-44 | 108 | 5:07:55 | 5:21:56 | 5:27:07 | 5:45:20 | 6:28:06 | 5:06:55 |
| M45-49 | 95 | 5:10:25 | 5:24:02 | 5:40:02 | 5:57:16 | 6:50:47 | 5:10:25 |
| M50-54 | 56 | 5:22:10 | 5:35:19 | 5:43:43 | 5:52:42 | 6:21:53 | 5:22:10 |
| M55-59 | 27 | 5:48:23 | 5:50:46 | 5:50:56 | 6:05:17 | 6:42:29 | 5:48:23 |
| M60-64 | 10 | 5:48:39 | 5:48:39 | 5:48:39 | 5:57:03 | 6:45:33 | 5:48:39 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 107 | 5:22:54 | 5:35:45 | 5:43:51 | 6:01:37 | 6:50:21 | 5:11:22 |
| F18-24 | 5 | 5:51:42 | 5:51:42 | 5:51:42 | 5:51:42 | 6:37:02 | 5:51:42 |
| F25-29 | 14 | 5:11:22 | 5:11:22 | 5:38:01 | 5:43:51 | 6:44:54 | 5:11:22 |
| F30-34 | 15 | 5:27:18 | 5:27:18 | 5:29:02 | 5:33:31 | 6:18:36 | 5:27:18 |
| F35-39 | 20 | 5:22:54 | 5:22:54 | 5:35:45 | 5:47:15 | 6:42:04 | 5:22:54 |
| F40-44 | 17 | 5:49:01 | 5:49:01 | 5:50:29 | 6:28:52 | 7:03:22 | 5:49:01 |
| F45-49 | 13 | 6:01:37 | 6:01:37 | 6:22:06 | 6:28:06 | 6:55:28 | 6:01:37 |
| F50-54 | 14 | 6:15:21 | 6:15:21 | 6:24:39 | 6:24:48 | 6:49:06 | 6:15:21 |
| F55-59 | 8 | 6:27:36 | 6:27:36 | 6:27:36 | 6:32:37 | 7:20:12 | 6:27:36 |
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.