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 | 331 | 4:14:21 | 4:32:51 | 4:50:31 | 5:16:25 | 6:00:07 | 3:49:36 |
| M18-24 | 23 | 4:23:39 | 5:06:11 | 5:12:55 | 5:24:40 | 5:50:39 | 4:23:39 |
| M25-29 | 39 | 3:49:36 | 3:57:29 | 4:38:59 | 5:06:16 | 5:57:30 | 3:49:36 |
| M30-34 | 42 | 4:27:11 | 4:32:46 | 4:44:31 | 5:03:41 | 5:53:30 | 4:27:11 |
| M35-39 | 66 | 4:14:21 | 4:23:07 | 4:33:12 | 5:06:17 | 5:53:07 | 4:14:21 |
| M40-44 | 56 | 4:03:49 | 4:31:04 | 5:06:36 | 5:17:23 | 6:01:39 | 4:03:49 |
| M45-49 | 46 | 4:22:57 | 4:48:03 | 4:50:31 | 5:16:44 | 5:54:54 | 4:22:57 |
| M50-54 | 25 | 4:41:32 | 4:44:11 | 4:50:46 | 5:04:14 | 5:52:38 | 4:41:32 |
| M55-59 | 24 | 4:59:37 | 5:04:11 | 5:20:31 | 5:52:30 | 6:34:11 | 4:59:37 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 53 | 4:20:27 | 5:08:11 | 5:09:56 | 5:34:05 | 6:12:08 | 4:20:27 |
| F25-29 | 8 | 4:20:27 | 4:20:27 | 4:20:27 | 5:13:01 | 5:47:19 | 4:20:27 |
| F30-34 | 7 | 5:09:47 | 5:09:47 | 5:09:47 | 5:25:04 | 6:00:54 | 5:09:47 |
| F35-39 | 11 | 4:26:37 | 4:26:37 | 5:08:56 | 5:09:56 | 5:39:55 | 4:26:37 |
| F40-44 | 7 | 5:08:11 | 5:08:11 | 5:08:11 | 6:02:39 | 6:15:28 | 5:08:11 |
| F45-49 | 5 | 5:11:22 | 5:11:22 | 5:11:22 | 5:11:22 | 6:01:48 | 5:11:22 |
| F50-54 | 8 | 5:38:55 | 5:38:55 | 5:38:55 | 5:43:35 | 6:30:12 | 5:38:55 |
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.