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 | 182 | 9:22:46 | 10:12:06 | 10:44:49 | 11:19:40 | 13:05:10 | 8:53:20 |
| MPRO | 11 | 8:53:20 | 8:53:20 | 9:22:46 | 9:38:52 | 10:03:38 | 8:53:20 |
| M25-29 | 13 | 11:01:13 | 11:01:13 | 11:09:57 | 11:48:55 | 14:24:23 | 11:01:13 |
| M30-34 | 15 | 10:06:24 | 10:06:24 | 10:09:15 | 10:49:13 | 12:41:10 | 10:06:24 |
| M35-39 | 36 | 9:28:49 | 10:16:40 | 10:29:43 | 10:50:28 | 12:17:02 | 9:28:49 |
| M40-44 | 44 | 10:31:01 | 10:47:09 | 11:07:42 | 11:23:16 | 13:05:30 | 10:31:01 |
| M45-49 | 29 | 10:51:05 | 11:37:32 | 11:41:00 | 12:23:14 | 14:13:48 | 10:51:05 |
| M50-54 | 14 | 10:58:03 | 10:58:03 | 12:10:37 | 12:29:44 | 14:13:48 | 10:58:03 |
| M55-59 | 11 | 12:09:56 | 12:09:56 | 12:27:37 | 12:29:00 | 13:07:46 | 12:09:56 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 35 | 9:48:14 | 10:01:39 | 10:25:15 | 10:50:13 | 12:56:17 | 9:48:14 |
| FPRO | 9 | 9:48:14 | 9:48:14 | 9:48:14 | 10:01:39 | 10:29:53 | 9:48:14 |
| F35-39 | 7 | 11:14:26 | 11:14:26 | 11:14:26 | 11:35:18 | 12:52:36 | 11:14:26 |
| F40-44 | 6 | 11:28:18 | 11:28:18 | 11:28:18 | 12:55:18 | 13:54:02 | 11:28:18 |
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.