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 | 270 | 4:26:17 | 4:45:06 | 4:55:59 | 5:16:50 | 5:58:45 | 4:11:54 |
| M18-24 | 11 | 4:14:37 | 4:14:37 | 4:56:49 | 5:48:40 | 6:37:39 | 4:14:37 |
| M25-29 | 25 | 4:28:03 | 4:31:12 | 4:57:31 | 5:13:09 | 6:05:14 | 4:28:03 |
| M30-34 | 40 | 4:11:54 | 4:26:17 | 4:30:41 | 4:52:46 | 5:54:42 | 4:11:54 |
| M35-39 | 40 | 4:33:40 | 4:36:37 | 4:50:25 | 5:12:47 | 5:56:24 | 4:33:40 |
| M40-44 | 41 | 4:38:43 | 4:54:39 | 4:58:19 | 5:21:00 | 5:50:39 | 4:38:43 |
| M45-49 | 38 | 4:30:15 | 4:33:42 | 4:53:51 | 5:13:20 | 5:55:29 | 4:30:15 |
| M50-54 | 29 | 4:46:09 | 4:51:50 | 4:53:27 | 5:08:51 | 5:37:08 | 4:46:09 |
| M55-59 | 26 | 4:55:00 | 5:14:18 | 5:24:22 | 5:36:33 | 5:58:26 | 4:55:00 |
| M60-64 | 14 | 5:42:12 | 5:42:12 | 5:50:25 | 6:08:40 | 6:41:20 | 5:42:12 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 162 | 4:48:18 | 5:05:15 | 5:24:37 | 5:41:10 | 6:34:33 | 4:37:08 |
| F18-24 | 5 | 5:41:23 | 5:41:23 | 5:41:23 | 5:41:23 | 6:39:55 | 5:41:23 |
| F25-29 | 13 | 4:55:55 | 4:55:55 | 5:02:56 | 5:03:21 | 6:12:42 | 4:55:55 |
| F30-34 | 38 | 4:37:08 | 4:48:18 | 5:02:39 | 5:33:50 | 6:16:27 | 4:37:08 |
| F35-39 | 15 | 5:14:03 | 5:14:03 | 5:25:08 | 5:27:16 | 6:28:08 | 5:14:03 |
| F40-44 | 28 | 5:04:37 | 5:05:15 | 5:21:54 | 5:41:12 | 6:40:31 | 5:04:37 |
| F45-49 | 27 | 5:16:22 | 5:27:40 | 5:30:23 | 6:01:28 | 6:36:27 | 5:16:22 |
| F50-54 | 21 | 5:12:48 | 5:17:13 | 5:27:29 | 5:55:16 | 6:33:12 | 5:12:48 |
| F55-59 | 11 | 5:24:37 | 5:24:37 | 6:18:15 | 6:22:59 | 6:54:37 | 5:24:37 |
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.