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 | 1,036 | 4:33:15 | 4:48:48 | 5:00:36 | 5:18:56 | 5:52:14 | 4:15:06 |
| M18-24 | 29 | 4:15:06 | 4:27:35 | 4:31:35 | 4:46:00 | 5:36:42 | 4:15:06 |
| M25-29 | 92 | 4:23:49 | 4:38:04 | 4:45:12 | 4:53:22 | 5:32:42 | 4:23:49 |
| M30-34 | 162 | 4:25:58 | 4:46:54 | 4:56:08 | 5:06:33 | 5:40:45 | 4:20:06 |
| M35-39 | 181 | 4:35:00 | 4:53:54 | 5:02:14 | 5:18:06 | 5:52:58 | 4:17:37 |
| M40-44 | 170 | 4:39:43 | 4:49:02 | 4:58:30 | 5:17:45 | 5:52:20 | 4:39:18 |
| M45-49 | 177 | 4:43:55 | 4:53:00 | 5:05:43 | 5:24:54 | 5:52:35 | 4:42:19 |
| M50-54 | 127 | 4:54:10 | 5:04:35 | 5:18:47 | 5:33:55 | 6:06:25 | 4:52:01 |
| M55-59 | 67 | 4:47:30 | 5:21:10 | 5:23:20 | 5:37:06 | 5:58:38 | 4:47:30 |
| M60-64 | 24 | 5:28:59 | 5:32:06 | 5:38:05 | 5:52:39 | 6:12:41 | 5:28:59 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 197 | 4:53:35 | 5:15:26 | 5:23:41 | 5:43:01 | 6:18:33 | 4:51:00 |
| F18-24 | 9 | 4:53:35 | 4:53:35 | 4:53:35 | 4:55:54 | 5:54:26 | 4:53:35 |
| F25-29 | 28 | 4:58:56 | 5:04:27 | 5:15:45 | 5:48:33 | 6:25:24 | 4:58:56 |
| F30-34 | 29 | 5:11:15 | 5:19:05 | 5:23:41 | 5:37:29 | 6:19:16 | 5:11:15 |
| F35-39 | 23 | 5:00:52 | 5:11:24 | 5:14:47 | 5:26:23 | 5:59:47 | 5:00:52 |
| F40-44 | 42 | 4:51:00 | 5:20:24 | 5:21:46 | 5:37:28 | 6:09:16 | 4:51:00 |
| F45-49 | 31 | 5:15:26 | 5:29:32 | 5:45:57 | 5:50:29 | 6:44:15 | 5:15:26 |
| F50-54 | 25 | 5:28:19 | 5:46:42 | 5:49:13 | 6:00:24 | 6:28:44 | 5:28:19 |
| F55-59 | 9 | 5:18:53 | 5:18:53 | 5:18:53 | 5:52:18 | 6:26:18 | 5:18:53 |
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.