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 | 861 | 3:33:17 | 3:56:25 | 4:11:09 | 4:33:05 | 5:16:24 | 3:15:53 |
| M18-24 | 130 | 3:28:35 | 3:48:52 | 4:11:09 | 4:37:13 | 5:11:06 | 3:22:07 |
| M25-29 | 150 | 3:32:59 | 3:50:05 | 4:06:25 | 4:32:29 | 5:21:03 | 3:29:55 |
| M30-34 | 118 | 3:27:32 | 3:56:24 | 4:16:37 | 4:41:09 | 5:20:32 | 3:15:53 |
| M35-39 | 98 | 3:39:11 | 3:44:22 | 4:03:20 | 4:12:54 | 5:12:04 | 3:39:11 |
| M40-44 | 96 | 3:22:31 | 3:48:19 | 4:00:16 | 4:26:31 | 5:03:17 | 3:22:31 |
| M45-49 | 97 | 4:03:25 | 4:08:43 | 4:26:45 | 4:38:54 | 5:24:32 | 4:03:25 |
| M50-54 | 55 | 4:02:31 | 4:07:29 | 4:10:07 | 4:22:36 | 5:11:01 | 4:02:31 |
| M55-59 | 67 | 3:48:05 | 4:22:13 | 4:25:52 | 4:44:53 | 5:27:10 | 3:48:05 |
| M60-64 | 26 | 4:04:12 | 4:13:01 | 4:20:11 | 5:02:14 | 5:46:54 | 4:04:12 |
| M65-69 | 17 | 4:06:32 | 4:06:32 | 4:16:03 | 4:38:09 | 5:51:59 | 4:06:32 |
| M70-74 | 5 | 5:11:25 | 5:11:25 | 5:11:25 | 5:11:25 | 6:20:52 | 5:11:25 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 309 | 4:00:39 | 4:16:15 | 4:29:27 | 4:51:10 | 5:39:40 | 3:50:06 |
| F18-24 | 35 | 3:50:06 | 4:14:27 | 4:34:55 | 4:55:43 | 5:30:05 | 3:50:06 |
| F25-29 | 52 | 4:04:14 | 4:11:30 | 4:22:35 | 4:56:08 | 5:42:37 | 4:04:14 |
| F30-34 | 46 | 3:50:18 | 4:15:50 | 4:26:08 | 4:43:18 | 5:35:49 | 3:50:18 |
| F35-39 | 33 | 4:17:44 | 4:26:13 | 4:32:36 | 5:01:26 | 5:42:14 | 4:17:44 |
| F40-44 | 36 | 4:00:39 | 4:10:39 | 4:15:00 | 4:42:02 | 5:34:18 | 4:00:39 |
| F45-49 | 20 | 4:18:38 | 4:18:38 | 4:24:17 | 4:32:27 | 5:26:57 | 4:18:38 |
| F50-54 | 41 | 4:08:39 | 4:16:15 | 4:20:18 | 4:48:15 | 5:36:35 | 4:08:39 |
| F55-59 | 27 | 4:29:27 | 4:43:35 | 4:56:24 | 5:12:58 | 6:14:39 | 4:29:27 |
| F60-64 | 12 | 4:49:32 | 4:49:32 | 4:51:08 | 5:24:49 | 6:05:22 | 4:49:32 |
| F65-69 | 5 | 5:09:52 | 5:09:52 | 5:09:52 | 5:09:52 | 6:07:18 | 5:09:52 |
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.