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 | 580 | 4:05:16 | 4:17:07 | 4:30:41 | 4:51:49 | 5:35:57 | 3:58:15 |
| M18-24 | 31 | 4:01:21 | 4:04:16 | 4:12:52 | 4:17:38 | 5:18:03 | 4:01:21 |
| M25-29 | 69 | 4:04:22 | 4:14:53 | 4:22:30 | 4:48:44 | 5:44:21 | 4:04:22 |
| M30-34 | 86 | 4:06:29 | 4:13:35 | 4:25:14 | 4:48:33 | 5:20:14 | 4:06:29 |
| M35-39 | 91 | 3:58:15 | 4:20:31 | 4:34:55 | 4:50:26 | 5:30:19 | 3:58:15 |
| M40-44 | 107 | 4:10:05 | 4:18:43 | 4:30:30 | 4:48:32 | 5:28:24 | 4:01:15 |
| M45-49 | 91 | 4:10:06 | 4:25:49 | 4:37:06 | 4:59:10 | 5:41:07 | 4:10:06 |
| M50-54 | 46 | 4:28:16 | 4:35:05 | 4:36:52 | 4:50:41 | 5:33:00 | 4:28:16 |
| M55-59 | 30 | 4:27:45 | 4:48:04 | 4:55:51 | 5:03:18 | 5:54:29 | 4:27:45 |
| M60-64 | 22 | 4:49:43 | 5:04:29 | 5:08:29 | 5:14:35 | 6:03:03 | 4:49:43 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 266 | 4:34:48 | 4:49:48 | 5:03:44 | 5:16:12 | 6:02:33 | 4:24:57 |
| F18-24 | 23 | 4:35:06 | 4:53:07 | 5:10:05 | 5:14:35 | 5:29:37 | 4:35:06 |
| F25-29 | 44 | 4:24:57 | 4:36:30 | 4:54:53 | 5:05:37 | 6:03:15 | 4:24:57 |
| F30-34 | 31 | 4:38:07 | 4:48:32 | 5:16:12 | 5:35:44 | 6:13:46 | 4:38:07 |
| F35-39 | 46 | 4:34:48 | 4:41:20 | 4:44:40 | 5:06:00 | 5:49:09 | 4:34:48 |
| F40-44 | 30 | 4:38:39 | 4:44:08 | 5:06:01 | 5:11:11 | 5:55:13 | 4:38:39 |
| F45-49 | 36 | 5:01:30 | 5:03:14 | 5:10:14 | 5:17:03 | 5:52:17 | 5:01:30 |
| F50-54 | 32 | 5:06:49 | 5:10:19 | 5:24:43 | 5:39:38 | 6:26:35 | 5:06:49 |
| F55-59 | 14 | 4:59:17 | 4:59:17 | 5:02:32 | 5:16:31 | 6:33:27 | 4:59:17 |
| F60-64 | 8 | 5:46:08 | 5:46:08 | 5:46:08 | 5:46:32 | 6:06:32 | 5:46:08 |
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.