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 | 294 | 3:48:44 | 4:03:05 | 4:14:50 | 4:29:54 | 4:50:59 | 3:43:26 |
| MPRO | 19 | 3:43:26 | 3:43:26 | 3:47:47 | 3:50:03 | 3:57:21 | 3:43:26 |
| M25-29 | 9 | 4:11:15 | 4:11:15 | 4:11:15 | 4:16:32 | 4:29:24 | 4:11:15 |
| M30-34 | 66 | 3:52:30 | 4:18:27 | 4:23:37 | 4:37:08 | 4:56:43 | 3:52:30 |
| M35-39 | 58 | 4:06:17 | 4:10:07 | 4:18:31 | 4:29:53 | 4:45:43 | 4:06:17 |
| M40-44 | 110 | 4:13:10 | 4:24:07 | 4:34:37 | 4:46:26 | 5:07:19 | 4:05:44 |
| M45-49 | 17 | 4:14:38 | 4:14:38 | 4:23:59 | 4:36:26 | 4:44:18 | 4:14:38 |
| M50-54 | 13 | 4:18:14 | 4:18:14 | 4:38:59 | 4:40:39 | 4:46:13 | 4:18:14 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 90 | 4:01:44 | 4:08:07 | 4:10:34 | 4:23:56 | 4:53:46 | 4:01:44 |
| FPRO | 22 | 4:01:44 | 4:04:34 | 4:06:56 | 4:08:07 | 4:14:56 | 4:01:44 |
| F25-29 | 6 | 4:28:51 | 4:28:51 | 4:28:51 | 4:33:58 | 4:35:24 | 4:28:51 |
| F30-34 | 13 | 4:33:06 | 4:33:06 | 4:36:07 | 4:36:07 | 5:00:30 | 4:33:06 |
| F35-39 | 12 | 4:23:56 | 4:23:56 | 4:41:46 | 4:43:01 | 4:50:38 | 4:23:56 |
| F40-44 | 13 | 4:31:58 | 4:31:58 | 4:52:41 | 4:55:13 | 5:11:04 | 4:31:58 |
| F45-49 | 23 | 4:25:45 | 5:01:58 | 5:04:45 | 5:04:59 | 5:24:44 | 4:25:45 |
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.