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 | 736 | 4:16:11 | 4:30:52 | 4:42:36 | 5:00:35 | 5:42:04 | 4:05:43 |
| M18-24 | 30 | 4:07:33 | 4:12:38 | 4:24:01 | 4:47:13 | 5:40:33 | 4:07:33 |
| M25-29 | 94 | 4:10:33 | 4:24:39 | 4:36:09 | 4:50:37 | 5:37:41 | 4:10:33 |
| M30-34 | 98 | 4:05:43 | 4:21:51 | 4:28:48 | 4:54:27 | 5:29:21 | 4:05:43 |
| M35-39 | 111 | 4:13:49 | 4:30:29 | 4:41:12 | 4:54:37 | 5:37:38 | 4:09:19 |
| M40-44 | 108 | 4:21:15 | 4:31:17 | 4:42:02 | 4:57:30 | 5:37:15 | 4:16:55 |
| M45-49 | 92 | 4:26:08 | 4:33:53 | 4:39:49 | 4:55:39 | 5:35:45 | 4:26:08 |
| M50-54 | 93 | 4:29:50 | 4:42:59 | 4:55:49 | 5:07:14 | 5:47:29 | 4:29:50 |
| M55-59 | 58 | 4:38:26 | 4:53:04 | 5:00:39 | 5:21:23 | 6:04:20 | 4:38:26 |
| M60-64 | 34 | 4:43:29 | 5:07:40 | 5:12:26 | 5:24:10 | 5:58:27 | 4:43:29 |
| M65-69 | 13 | 5:19:00 | 5:19:00 | 5:44:25 | 5:47:22 | 6:19:04 | 5:19:00 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 351 | 4:46:53 | 5:02:04 | 5:17:31 | 5:34:40 | 6:20:19 | 4:33:54 |
| F18-24 | 13 | 4:47:19 | 4:47:19 | 4:56:19 | 4:58:26 | 5:44:02 | 4:47:19 |
| F25-29 | 45 | 4:33:54 | 5:01:20 | 5:02:04 | 5:27:59 | 5:58:21 | 4:33:54 |
| F30-34 | 57 | 4:42:15 | 4:59:08 | 5:16:04 | 5:34:40 | 6:11:14 | 4:42:15 |
| F35-39 | 47 | 4:38:10 | 4:56:54 | 5:05:43 | 5:21:00 | 5:53:53 | 4:38:10 |
| F40-44 | 55 | 4:47:22 | 5:04:28 | 5:14:26 | 5:22:17 | 6:09:02 | 4:47:22 |
| F45-49 | 48 | 4:46:53 | 5:16:00 | 5:28:05 | 5:48:28 | 6:36:21 | 4:46:53 |
| F50-54 | 41 | 5:03:19 | 5:26:24 | 5:34:58 | 5:48:55 | 6:27:13 | 5:03:19 |
| F55-59 | 28 | 5:34:27 | 5:37:58 | 5:47:38 | 6:23:08 | 7:05:37 | 5:34:27 |
| F60-64 | 11 | 5:23:53 | 5:23:53 | 6:27:48 | 6:37:11 | 6:54:33 | 5:23:53 |
| F65-69 | 6 | 6:37:36 | 6:37:36 | 6:37:36 | 7:05:48 | 7:09:42 | 6:37:36 |
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.