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 | 480 | 4:52:37 | 5:34:31 | 6:01:50 | 6:28:33 | 7:20:31 | 4:32:05 |
| M18-24 | 20 | 4:50:09 | 4:50:09 | 5:11:07 | 5:55:29 | 6:39:00 | 4:50:09 |
| M25-29 | 53 | 4:32:05 | 4:57:36 | 5:25:27 | 6:14:05 | 7:14:30 | 4:32:05 |
| M30-34 | 90 | 4:39:24 | 5:42:55 | 5:57:37 | 6:22:59 | 7:12:24 | 4:39:24 |
| M35-39 | 106 | 5:07:04 | 5:34:31 | 6:06:44 | 6:27:39 | 7:17:15 | 4:59:19 |
| M40-44 | 110 | 5:00:03 | 5:34:46 | 6:13:55 | 6:39:07 | 7:25:47 | 4:56:28 |
| M45-49 | 49 | 5:25:33 | 5:45:46 | 6:05:51 | 6:33:25 | 7:26:56 | 5:25:33 |
| M50-54 | 34 | 5:40:34 | 5:42:32 | 6:14:42 | 6:45:04 | 7:41:02 | 5:40:34 |
| M55-59 | 9 | 5:43:16 | 5:43:16 | 5:43:16 | 5:47:16 | 7:48:04 | 5:43:16 |
| M60-64 | 7 | 6:20:22 | 6:20:22 | 6:20:22 | 6:57:05 | 7:55:39 | 6:20:22 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 36 | 5:09:10 | 5:12:50 | 5:45:32 | 6:28:58 | 7:36:12 | 5:09:10 |
| F25-29 | 7 | 5:52:48 | 5:52:48 | 5:52:48 | 6:28:58 | 6:58:18 | 5:52:48 |
| F35-39 | 6 | 5:09:10 | 5:09:10 | 5:09:10 | 5:12:50 | 5:23:33 | 5:09:10 |
| F40-44 | 5 | 5:45:32 | 5:45:32 | 5:45:32 | 5:45:32 | 7:40:08 | 5:45:32 |
| F45-49 | 6 | 6:32:15 | 6:32:15 | 6:32:15 | 7:20:30 | 7:44:11 | 6:32:15 |
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.