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 | 252 | 4:42:40 | 5:13:14 | 5:27:27 | 5:54:39 | 6:48:04 | 4:37:28 |
| M18-24 | 11 | 5:02:22 | 5:02:22 | 5:10:31 | 5:11:42 | 5:44:38 | 5:02:22 |
| M25-29 | 26 | 4:37:28 | 5:04:49 | 5:10:46 | 5:22:45 | 6:23:57 | 4:37:28 |
| M30-34 | 45 | 4:42:40 | 5:09:18 | 5:25:01 | 6:00:02 | 7:00:21 | 4:42:40 |
| M35-39 | 41 | 5:06:03 | 5:25:11 | 5:47:20 | 5:54:39 | 6:48:56 | 5:06:03 |
| M40-44 | 50 | 4:40:58 | 5:14:35 | 5:25:02 | 5:43:30 | 6:38:36 | 4:40:58 |
| M45-49 | 38 | 5:22:12 | 5:25:24 | 6:00:11 | 6:14:27 | 6:53:03 | 5:22:12 |
| M50-54 | 20 | 5:38:06 | 5:38:06 | 5:47:18 | 6:13:38 | 7:02:31 | 5:38:06 |
| M55-59 | 13 | 5:54:51 | 5:54:51 | 5:55:25 | 5:59:42 | 7:27:19 | 5:54:51 |
| M60-64 | 8 | 5:56:30 | 5:56:30 | 5:56:30 | 6:00:12 | 6:13:53 | 5:56:30 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 47 | 5:26:22 | 5:37:09 | 5:42:11 | 6:20:32 | 6:59:44 | 5:26:22 |
| F25-29 | 6 | 5:26:22 | 5:26:22 | 5:26:22 | 5:41:41 | 5:42:11 | 5:26:22 |
| F30-34 | 14 | 5:37:09 | 5:37:09 | 6:20:32 | 6:28:04 | 6:45:06 | 5:37:09 |
| F35-39 | 6 | 5:59:21 | 5:59:21 | 5:59:21 | 6:15:59 | 7:09:46 | 5:59:21 |
| F40-44 | 13 | 6:10:37 | 6:10:37 | 6:23:56 | 6:28:35 | 7:09:11 | 6:10:37 |
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.