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 | 538 | 4:18:31 | 4:35:23 | 4:45:31 | 5:03:43 | 5:39:58 | 4:03:21 |
| M25-29 | 14 | 4:03:21 | 4:03:21 | 4:25:14 | 4:32:47 | 5:24:34 | 4:03:21 |
| M30-34 | 48 | 4:18:31 | 4:23:36 | 4:26:31 | 4:47:27 | 5:19:21 | 4:18:31 |
| M35-39 | 95 | 4:11:48 | 4:22:58 | 4:29:56 | 4:45:31 | 5:25:21 | 4:11:48 |
| M40-44 | 112 | 4:26:39 | 4:36:41 | 4:47:24 | 4:58:40 | 5:39:31 | 4:21:34 |
| M45-49 | 118 | 4:38:48 | 4:50:23 | 4:54:28 | 5:08:56 | 5:32:56 | 4:35:41 |
| M50-54 | 81 | 4:24:27 | 4:42:58 | 4:53:54 | 5:13:09 | 5:51:24 | 4:24:27 |
| M55-59 | 39 | 4:39:11 | 5:03:39 | 5:08:49 | 5:23:19 | 6:07:27 | 4:39:11 |
| M60-64 | 21 | 5:17:33 | 5:43:16 | 5:47:54 | 5:51:55 | 6:24:05 | 5:17:33 |
| M65-69 | 5 | 6:25:31 | 6:25:31 | 6:25:31 | 6:25:31 | 6:37:18 | 6:25:31 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 109 | 4:46:46 | 5:03:31 | 5:16:03 | 5:31:52 | 6:15:49 | 4:41:25 |
| F30-34 | 14 | 4:55:50 | 4:55:50 | 5:02:18 | 5:05:28 | 5:31:52 | 4:55:50 |
| F35-39 | 14 | 5:03:31 | 5:03:31 | 5:15:03 | 5:16:56 | 5:33:57 | 5:03:31 |
| F40-44 | 22 | 4:41:25 | 4:46:46 | 4:49:46 | 5:26:26 | 5:53:38 | 4:41:25 |
| F45-49 | 28 | 5:08:58 | 5:17:45 | 5:23:00 | 5:54:23 | 6:33:48 | 5:08:58 |
| F50-54 | 13 | 5:56:22 | 5:56:22 | 6:08:41 | 6:09:02 | 6:34:55 | 5:56:22 |
| F55-59 | 8 | 5:42:09 | 5:42:09 | 5:42:09 | 5:45:46 | 6:14:21 | 5:42:09 |
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.