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 | 719 | 4:19:50 | 4:34:32 | 4:43:25 | 4:59:34 | 5:32:08 | 4:09:04 |
| M18-24 | 19 | 4:17:50 | 4:17:50 | 4:25:39 | 4:38:52 | 5:29:46 | 4:17:50 |
| M25-29 | 69 | 4:11:03 | 4:18:51 | 4:27:41 | 4:46:02 | 5:13:14 | 4:11:03 |
| M30-34 | 106 | 4:22:02 | 4:31:57 | 4:36:33 | 4:48:36 | 5:15:38 | 4:20:33 |
| M35-39 | 114 | 4:23:39 | 4:35:33 | 4:44:54 | 4:57:50 | 5:26:37 | 4:09:04 |
| M40-44 | 130 | 4:20:04 | 4:34:32 | 4:42:29 | 4:57:32 | 5:28:13 | 4:14:14 |
| M45-49 | 119 | 4:24:33 | 4:41:20 | 4:56:18 | 5:09:20 | 5:38:52 | 4:19:50 |
| M50-54 | 84 | 4:24:20 | 4:47:03 | 4:52:01 | 5:13:12 | 5:42:09 | 4:24:20 |
| M55-59 | 53 | 4:38:15 | 4:54:48 | 5:03:13 | 5:18:04 | 5:50:06 | 4:38:15 |
| M60-64 | 17 | 4:47:41 | 4:47:41 | 4:57:37 | 5:18:27 | 5:37:28 | 4:47:41 |
| M65-69 | 8 | 5:27:04 | 5:27:04 | 5:27:04 | 5:33:02 | 5:44:05 | 5:27:04 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 406 | 4:41:05 | 5:00:32 | 5:15:51 | 5:31:48 | 6:12:42 | 4:32:26 |
| F18-24 | 18 | 4:32:26 | 4:32:26 | 4:40:58 | 5:00:57 | 5:28:31 | 4:32:26 |
| F25-29 | 60 | 4:41:05 | 4:45:47 | 4:58:15 | 5:16:00 | 6:03:13 | 4:41:05 |
| F30-34 | 56 | 4:38:00 | 4:45:13 | 5:00:32 | 5:26:27 | 5:55:16 | 4:38:00 |
| F35-39 | 68 | 5:05:59 | 5:17:27 | 5:22:19 | 5:30:55 | 6:08:57 | 5:05:59 |
| F40-44 | 69 | 4:46:38 | 4:57:12 | 5:17:57 | 5:43:58 | 6:35:30 | 4:46:38 |
| F45-49 | 52 | 4:54:03 | 5:03:41 | 5:27:17 | 5:35:31 | 6:01:42 | 4:54:03 |
| F50-54 | 48 | 5:00:20 | 5:07:52 | 5:15:42 | 5:36:37 | 6:16:13 | 5:00:20 |
| F55-59 | 22 | 5:11:19 | 5:27:12 | 5:49:30 | 5:53:09 | 6:20:10 | 5:11:19 |
| F60-64 | 11 | 5:23:43 | 5:23:43 | 5:54:10 | 6:15:27 | 6:18:11 | 5:23:43 |
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.