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 | 1,601 | 4:10:30 | 4:34:24 | 4:45:42 | 4:58:33 | 5:33:26 | 3:56:44 |
| M18-24 | 209 | 4:05:20 | 4:25:08 | 4:38:22 | 4:57:10 | 5:34:00 | 3:56:44 |
| M25-29 | 274 | 4:06:34 | 4:30:57 | 4:44:48 | 5:01:48 | 5:31:48 | 4:01:35 |
| M30-34 | 286 | 4:15:35 | 4:32:48 | 4:45:42 | 4:57:35 | 5:28:46 | 4:13:11 |
| M35-39 | 206 | 4:20:08 | 4:33:43 | 4:43:17 | 4:51:32 | 5:19:53 | 4:09:47 |
| M40-44 | 197 | 4:09:23 | 4:29:52 | 4:39:46 | 4:50:48 | 5:26:37 | 4:06:24 |
| M45-49 | 150 | 4:16:45 | 4:36:17 | 4:42:04 | 4:57:05 | 5:38:30 | 4:16:42 |
| M50-54 | 116 | 4:33:09 | 4:52:25 | 5:02:52 | 5:10:49 | 5:36:54 | 4:26:18 |
| M55-59 | 102 | 4:34:24 | 4:48:00 | 4:55:31 | 5:07:03 | 5:41:48 | 4:28:39 |
| M60-64 | 43 | 4:51:07 | 5:03:47 | 5:16:36 | 5:25:31 | 6:10:02 | 4:51:07 |
| M65-69 | 15 | 5:23:06 | 5:23:06 | 5:37:30 | 5:38:07 | 5:57:57 | 5:23:06 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 426 | 4:40:03 | 4:58:36 | 5:08:50 | 5:28:36 | 5:58:58 | 4:20:31 |
| F18-24 | 60 | 4:24:36 | 4:53:29 | 5:11:12 | 5:21:54 | 5:57:41 | 4:24:36 |
| F25-29 | 84 | 4:40:03 | 5:01:04 | 5:19:30 | 5:35:08 | 6:01:48 | 4:40:03 |
| F30-34 | 78 | 4:20:31 | 4:47:39 | 4:58:44 | 5:17:50 | 5:56:11 | 4:20:31 |
| F35-39 | 55 | 4:46:59 | 4:58:36 | 5:04:23 | 5:15:52 | 6:04:04 | 4:46:59 |
| F40-44 | 54 | 4:50:43 | 4:57:06 | 5:04:08 | 5:20:04 | 5:47:39 | 4:50:43 |
| F45-49 | 34 | 4:46:27 | 5:01:51 | 5:10:45 | 5:31:32 | 5:53:45 | 4:46:27 |
| F50-54 | 31 | 5:10:27 | 5:14:52 | 5:27:16 | 5:38:05 | 6:13:28 | 5:10:27 |
| F55-59 | 21 | 5:08:50 | 5:21:47 | 5:33:51 | 5:38:43 | 5:52:06 | 5:08:50 |
| F60-64 | 8 | 5:26:04 | 5:26:04 | 5:26:04 | 5:28:52 | 5:53:01 | 5:26:04 |
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.