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 | 1,151 | 4:08:38 | 4:25:03 | 4:36:46 | 4:52:20 | 5:26:27 | 3:57:16 |
| M18-24 | 53 | 4:03:12 | 4:08:38 | 4:28:39 | 4:51:37 | 5:28:47 | 4:03:12 |
| M25-29 | 121 | 4:04:16 | 4:10:42 | 4:22:52 | 4:43:26 | 5:20:15 | 4:01:18 |
| M30-34 | 177 | 3:57:51 | 4:15:16 | 4:24:22 | 4:40:51 | 5:20:29 | 3:57:16 |
| M35-39 | 156 | 4:12:17 | 4:18:20 | 4:36:20 | 4:43:46 | 5:14:34 | 4:09:26 |
| M40-44 | 177 | 4:22:06 | 4:30:54 | 4:37:21 | 4:52:20 | 5:22:40 | 4:03:13 |
| M45-49 | 174 | 4:23:06 | 4:30:14 | 4:41:01 | 4:52:00 | 5:24:15 | 4:15:50 |
| M50-54 | 139 | 4:22:26 | 4:33:38 | 4:44:44 | 5:01:41 | 5:30:19 | 4:09:14 |
| M55-59 | 91 | 4:37:47 | 4:44:30 | 5:04:11 | 5:12:16 | 5:48:16 | 4:37:47 |
| M60-64 | 42 | 4:55:20 | 5:03:54 | 5:11:38 | 5:25:57 | 6:08:44 | 4:55:20 |
| M65-69 | 13 | 5:10:16 | 5:10:16 | 5:14:11 | 5:57:10 | 6:14:30 | 5:10:16 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 271 | 4:37:54 | 4:50:09 | 5:05:31 | 5:21:30 | 5:56:17 | 4:19:54 |
| F18-24 | 12 | 5:12:02 | 5:12:02 | 5:27:19 | 5:33:09 | 6:13:49 | 5:12:02 |
| F25-29 | 36 | 4:37:54 | 4:40:06 | 4:44:49 | 5:06:31 | 5:44:31 | 4:37:54 |
| F30-34 | 43 | 4:19:54 | 4:55:42 | 5:09:01 | 5:24:12 | 5:51:41 | 4:19:54 |
| F35-39 | 30 | 4:29:15 | 4:45:47 | 4:58:32 | 5:05:31 | 5:34:53 | 4:29:15 |
| F40-44 | 38 | 4:42:37 | 4:47:02 | 4:50:06 | 5:07:06 | 5:34:23 | 4:42:37 |
| F45-49 | 42 | 4:42:04 | 5:02:36 | 5:07:09 | 5:20:14 | 5:48:14 | 4:42:04 |
| F50-54 | 43 | 5:08:06 | 5:18:00 | 5:26:49 | 5:37:21 | 6:12:09 | 5:08:06 |
| F55-59 | 16 | 5:30:30 | 5:30:30 | 5:35:56 | 5:54:03 | 6:37:06 | 5:30:30 |
| F60-64 | 6 | 5:30:21 | 5:30:21 | 5:30:21 | 5:46:03 | 6:03:31 | 5:30:21 |
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.