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 | 413 | 4:18:15 | 4:32:21 | 4:41:40 | 5:00:38 | 5:34:04 | 4:01:10 |
| M18-24 | 8 | 5:03:39 | 5:03:39 | 5:03:39 | 5:11:32 | 5:37:00 | 5:03:39 |
| M25-29 | 35 | 4:01:11 | 4:20:49 | 4:31:19 | 5:01:40 | 5:21:54 | 4:01:11 |
| M30-34 | 93 | 4:18:15 | 4:22:08 | 4:33:11 | 4:52:37 | 5:32:06 | 4:18:15 |
| M35-39 | 90 | 4:16:29 | 4:25:28 | 4:35:43 | 4:51:30 | 5:25:54 | 4:16:29 |
| M40-44 | 81 | 4:25:51 | 4:38:08 | 4:57:15 | 5:02:23 | 5:34:07 | 4:25:51 |
| M45-49 | 53 | 4:34:07 | 4:35:15 | 4:56:51 | 5:08:37 | 5:34:15 | 4:34:07 |
| M50-54 | 31 | 4:33:42 | 4:36:38 | 4:56:14 | 5:05:45 | 5:37:13 | 4:33:42 |
| M55-59 | 14 | 4:49:27 | 4:49:27 | 4:52:36 | 5:00:38 | 5:41:51 | 4:49:27 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 72 | 4:41:08 | 4:50:05 | 5:03:14 | 5:21:48 | 5:54:09 | 4:41:08 |
| F25-29 | 8 | 4:51:50 | 4:51:50 | 4:51:50 | 5:40:35 | 6:13:42 | 4:51:50 |
| F30-34 | 13 | 4:41:08 | 4:41:08 | 4:56:32 | 5:03:14 | 6:16:39 | 4:41:08 |
| F35-39 | 20 | 4:50:05 | 4:50:05 | 5:06:58 | 5:25:54 | 6:05:52 | 4:50:05 |
| F40-44 | 16 | 4:47:41 | 4:47:41 | 5:11:22 | 5:27:10 | 5:41:30 | 4:47:41 |
| F45-49 | 7 | 5:16:23 | 5:16:23 | 5:16:23 | 5:38:46 | 5:50:09 | 5:16:23 |
| F50-54 | 5 | 5:00:23 | 5:00:23 | 5:00:23 | 5:00:23 | 5:20:34 | 5:00:23 |
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.