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 | 1,607 | 4:06:20 | 4:19:16 | 4:29:54 | 4:50:01 | 5:25:38 | 3:49:30 |
| M18-24 | 146 | 4:03:16 | 4:14:20 | 4:24:39 | 4:58:21 | 5:30:27 | 4:01:50 |
| M25-29 | 278 | 4:03:41 | 4:13:11 | 4:26:59 | 4:51:08 | 5:29:33 | 3:55:56 |
| M30-34 | 281 | 3:59:16 | 4:16:34 | 4:27:03 | 4:48:30 | 5:24:24 | 3:56:08 |
| M35-39 | 256 | 4:06:18 | 4:16:25 | 4:30:01 | 4:45:06 | 5:22:17 | 3:49:30 |
| M40-44 | 244 | 4:12:07 | 4:23:36 | 4:27:04 | 4:42:19 | 5:19:43 | 4:09:43 |
| M45-49 | 190 | 4:07:30 | 4:23:40 | 4:30:02 | 4:43:29 | 5:20:40 | 4:06:20 |
| M50-54 | 109 | 4:19:28 | 4:32:13 | 4:34:08 | 4:50:24 | 5:25:33 | 4:15:28 |
| M55-59 | 58 | 4:08:49 | 4:30:11 | 4:45:41 | 4:57:26 | 5:34:28 | 4:08:49 |
| M60-64 | 27 | 5:00:14 | 5:01:40 | 5:02:46 | 5:22:25 | 6:01:27 | 5:00:14 |
| M65-69 | 12 | 5:01:31 | 5:01:31 | 5:07:38 | 5:14:07 | 5:57:46 | 5:01:31 |
| M70-74 | 6 | 5:28:52 | 5:28:52 | 5:28:52 | 5:53:51 | 7:00:13 | 5:28:52 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 365 | 4:24:59 | 4:45:33 | 4:57:51 | 5:16:49 | 5:52:56 | 4:16:54 |
| F18-24 | 49 | 4:27:29 | 4:56:47 | 5:06:31 | 5:26:55 | 6:09:26 | 4:27:29 |
| F25-29 | 61 | 4:25:34 | 4:46:36 | 4:55:51 | 5:03:23 | 5:42:37 | 4:25:34 |
| F30-34 | 76 | 4:22:16 | 4:37:41 | 4:46:51 | 4:59:17 | 5:50:40 | 4:22:16 |
| F35-39 | 50 | 4:37:35 | 4:42:26 | 4:48:34 | 5:15:25 | 5:54:17 | 4:37:35 |
| F40-44 | 48 | 4:16:54 | 4:39:59 | 4:54:48 | 5:10:53 | 5:36:37 | 4:16:54 |
| F45-49 | 26 | 4:45:33 | 4:54:52 | 4:58:47 | 5:07:15 | 5:44:55 | 4:45:33 |
| F50-54 | 30 | 4:58:27 | 5:09:59 | 5:10:11 | 5:26:39 | 6:11:09 | 4:58:27 |
| F55-59 | 18 | 5:16:49 | 5:16:49 | 5:23:16 | 5:36:02 | 6:04:06 | 5:16:49 |
| F60-64 | 5 | 5:39:50 | 5:39:50 | 5:39:50 | 5:39:50 | 7:32:54 | 5:39:50 |
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.