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 | 1,077 | 4:29:15 | 4:45:53 | 5:01:06 | 5:16:26 | 5:54:36 | 4:07:00 |
| M18-24 | 25 | 4:25:37 | 4:48:47 | 5:12:58 | 5:25:07 | 5:52:57 | 4:25:37 |
| M25-29 | 116 | 4:26:43 | 4:38:03 | 4:48:00 | 5:07:13 | 5:56:04 | 4:25:25 |
| M30-34 | 221 | 4:18:30 | 4:41:58 | 4:55:50 | 5:13:19 | 5:49:10 | 4:07:00 |
| M35-39 | 279 | 4:34:49 | 4:48:09 | 5:03:24 | 5:16:25 | 5:53:28 | 4:11:53 |
| M40-44 | 220 | 4:33:28 | 4:51:11 | 4:59:55 | 5:14:30 | 5:54:42 | 4:32:27 |
| M45-49 | 117 | 4:37:26 | 4:54:25 | 5:04:26 | 5:16:09 | 5:59:28 | 4:28:13 |
| M50-54 | 67 | 4:49:25 | 4:55:15 | 5:04:10 | 5:20:12 | 6:04:19 | 4:49:25 |
| M55-59 | 27 | 5:26:03 | 5:30:04 | 5:30:38 | 5:41:05 | 6:29:00 | 5:26:03 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 139 | 4:43:31 | 5:08:55 | 5:23:50 | 5:32:18 | 6:06:17 | 4:41:01 |
| F25-29 | 16 | 4:43:31 | 4:43:31 | 5:17:46 | 5:32:54 | 5:50:15 | 4:43:31 |
| F30-34 | 28 | 5:14:18 | 5:22:05 | 5:25:22 | 5:32:18 | 6:00:39 | 5:14:18 |
| F35-39 | 37 | 4:41:01 | 4:46:57 | 5:08:55 | 5:26:44 | 5:51:16 | 4:41:01 |
| F40-44 | 31 | 4:57:59 | 5:06:34 | 5:25:58 | 5:43:28 | 6:09:21 | 4:57:59 |
| F45-49 | 15 | 5:34:33 | 5:34:33 | 5:51:35 | 5:54:17 | 6:12:22 | 5:34:33 |
| F50-54 | 7 | 5:46:50 | 5:46:50 | 5:46:50 | 6:03:36 | 7:33:20 | 5:46:50 |
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.