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 | 1,643 | 4:10:44 | 4:33:33 | 4:47:21 | 5:04:17 | 5:42:13 | 3:48:25 |
| MPRO | 22 | 3:48:25 | 3:50:51 | 3:52:42 | 3:55:35 | 4:04:14 | 3:48:25 |
| M18-24 | 48 | 4:16:14 | 4:23:33 | 4:27:13 | 4:51:08 | 5:34:27 | 4:16:14 |
| M25-29 | 129 | 4:12:38 | 4:23:01 | 4:31:14 | 4:45:35 | 5:26:03 | 4:12:25 |
| M30-34 | 156 | 4:12:44 | 4:28:55 | 4:38:30 | 4:50:57 | 5:24:19 | 4:10:41 |
| M35-39 | 206 | 4:23:55 | 4:36:17 | 4:43:34 | 4:58:33 | 5:35:15 | 4:10:44 |
| M40-44 | 297 | 4:25:58 | 4:38:18 | 4:51:38 | 5:04:21 | 5:36:09 | 4:08:21 |
| M45-49 | 329 | 4:24:13 | 4:40:14 | 4:53:31 | 5:05:46 | 5:42:11 | 4:20:13 |
| M50-54 | 236 | 4:35:17 | 4:53:42 | 5:03:12 | 5:19:09 | 5:50:42 | 4:31:42 |
| M55-59 | 147 | 4:47:21 | 5:01:12 | 5:11:58 | 5:27:13 | 6:00:54 | 4:43:37 |
| M60-64 | 44 | 5:03:29 | 5:20:09 | 5:29:57 | 5:48:04 | 6:07:52 | 5:03:29 |
| M65-69 | 18 | 5:16:04 | 5:16:04 | 5:32:46 | 6:03:43 | 6:37:54 | 5:16:04 |
| M70-74 | 10 | 5:42:24 | 5:42:24 | 5:42:24 | 6:40:27 | 7:10:33 | 5:42:24 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 825 | 4:34:38 | 5:02:25 | 5:19:25 | 5:40:30 | 6:20:04 | 4:11:51 |
| FPRO | 16 | 4:11:51 | 4:11:51 | 4:21:23 | 4:23:59 | 4:31:09 | 4:11:51 |
| F18-24 | 27 | 5:00:34 | 5:02:28 | 5:03:39 | 5:37:58 | 6:12:58 | 5:00:34 |
| F25-29 | 78 | 4:47:23 | 4:57:03 | 5:02:04 | 5:26:20 | 6:08:02 | 4:47:23 |
| F30-34 | 94 | 4:51:23 | 4:55:26 | 5:12:58 | 5:29:52 | 6:21:01 | 4:51:23 |
| F35-39 | 100 | 4:41:19 | 5:08:04 | 5:20:17 | 5:36:46 | 6:08:56 | 4:41:19 |
| F40-44 | 179 | 4:55:35 | 5:08:44 | 5:25:08 | 5:40:43 | 6:19:21 | 4:43:13 |
| F45-49 | 127 | 4:50:53 | 5:05:40 | 5:34:16 | 5:52:03 | 6:22:54 | 4:46:21 |
| F50-54 | 120 | 5:08:47 | 5:23:14 | 5:32:15 | 5:51:18 | 6:24:30 | 5:02:56 |
| F55-59 | 62 | 5:07:44 | 5:26:56 | 5:42:23 | 5:54:35 | 6:48:33 | 5:07:44 |
| F60-64 | 16 | 5:21:47 | 5:21:47 | 5:24:30 | 5:49:44 | 6:24:48 | 5:21:47 |
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.