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 | 2,357 | 4:26:44 | 4:45:52 | 4:56:23 | 5:12:46 | 5:45:32 | 4:13:59 |
| M18-24 | 46 | 4:16:46 | 4:33:30 | 4:49:43 | 5:10:57 | 5:49:04 | 4:16:46 |
| M25-29 | 228 | 4:24:19 | 4:40:04 | 4:49:47 | 5:10:16 | 5:42:23 | 4:15:42 |
| M30-34 | 351 | 4:23:30 | 4:37:41 | 4:46:21 | 4:59:06 | 5:32:53 | 4:18:51 |
| M35-39 | 370 | 4:28:18 | 4:44:44 | 4:55:10 | 5:06:37 | 5:39:25 | 4:19:54 |
| M40-44 | 410 | 4:28:32 | 4:44:49 | 4:54:46 | 5:07:43 | 5:39:32 | 4:13:59 |
| M45-49 | 405 | 4:32:46 | 4:51:40 | 5:00:39 | 5:16:20 | 5:47:47 | 4:15:23 |
| M50-54 | 300 | 4:41:36 | 4:58:30 | 5:11:03 | 5:27:29 | 5:55:03 | 4:38:21 |
| M55-59 | 177 | 4:49:37 | 5:05:53 | 5:14:59 | 5:26:05 | 6:05:34 | 4:30:27 |
| M60-64 | 50 | 4:54:31 | 5:03:11 | 5:18:57 | 5:37:02 | 6:18:11 | 4:54:31 |
| M65-69 | 15 | 5:27:56 | 5:27:56 | 5:40:04 | 5:48:25 | 6:21:51 | 5:27:56 |
| M70-74 | 5 | 5:35:16 | 5:35:16 | 5:35:16 | 5:35:16 | 6:15:45 | 5:35:16 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 475 | 4:54:33 | 5:08:19 | 5:20:43 | 5:43:16 | 6:20:21 | 4:43:14 |
| F18-24 | 10 | 5:31:04 | 5:31:04 | 5:31:04 | 5:34:10 | 6:04:48 | 5:31:04 |
| F25-29 | 61 | 4:54:33 | 5:09:05 | 5:17:53 | 5:41:24 | 6:16:49 | 4:54:33 |
| F30-34 | 84 | 4:47:10 | 5:04:10 | 5:12:05 | 5:41:41 | 6:15:09 | 4:47:10 |
| F35-39 | 66 | 4:43:14 | 5:03:52 | 5:06:07 | 5:38:49 | 6:16:36 | 4:43:14 |
| F40-44 | 76 | 4:54:39 | 5:15:27 | 5:27:52 | 5:43:28 | 6:13:08 | 4:54:39 |
| F45-49 | 86 | 4:48:37 | 5:11:45 | 5:17:08 | 5:40:38 | 6:17:13 | 4:48:37 |
| F50-54 | 64 | 4:54:15 | 5:33:05 | 5:36:55 | 5:58:39 | 6:39:13 | 4:54:15 |
| F55-59 | 17 | 4:58:59 | 4:58:59 | 5:42:03 | 6:01:58 | 6:59:16 | 4:58:59 |
| F60-64 | 7 | 5:49:49 | 5:49:49 | 5:49:49 | 6:16:41 | 7:03:26 | 5:49:49 |
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.