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 | 1,044 | 3:48:35 | 4:21:43 | 4:41:43 | 4:59:31 | 5:40:58 | 3:34:34 |
| MPRO | 22 | 3:34:34 | 3:37:19 | 3:38:36 | 3:39:09 | 3:48:35 | 3:34:34 |
| M18-24 | 185 | 4:08:12 | 4:48:12 | 4:57:30 | 5:16:51 | 5:55:35 | 4:04:16 |
| M25-29 | 190 | 4:04:52 | 4:18:47 | 4:29:12 | 5:02:56 | 5:42:13 | 3:59:53 |
| M30-34 | 189 | 3:56:38 | 4:19:50 | 4:35:58 | 4:56:57 | 5:43:57 | 3:56:03 |
| M35-39 | 146 | 3:59:01 | 4:36:53 | 4:43:31 | 4:55:22 | 5:34:12 | 3:56:11 |
| M40-44 | 127 | 4:14:21 | 4:33:33 | 4:46:58 | 4:59:13 | 5:35:52 | 4:13:02 |
| M45-49 | 80 | 4:13:51 | 4:21:43 | 4:36:44 | 4:57:25 | 5:33:58 | 4:13:51 |
| M50-54 | 53 | 4:23:41 | 4:35:33 | 4:46:02 | 5:02:23 | 5:35:04 | 4:23:41 |
| M55-59 | 28 | 4:35:22 | 4:44:03 | 4:45:08 | 5:25:35 | 5:48:44 | 4:35:22 |
| M60-64 | 17 | 5:09:25 | 5:09:25 | 5:15:31 | 5:27:34 | 5:41:35 | 5:09:25 |
| M65-69 | 5 | 5:18:56 | 5:18:56 | 5:18:56 | 5:18:56 | 5:52:43 | 5:18:56 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 255 | 4:10:35 | 4:42:39 | 5:01:43 | 5:22:39 | 6:12:00 | 4:05:41 |
| FPRO | 9 | 4:05:41 | 4:05:41 | 4:05:41 | 4:09:01 | 4:16:03 | 4:05:41 |
| F18-24 | 41 | 4:42:39 | 5:07:12 | 5:22:39 | 5:48:49 | 6:35:07 | 4:42:39 |
| F25-29 | 59 | 4:40:29 | 5:03:26 | 5:20:47 | 5:31:59 | 6:22:47 | 4:40:29 |
| F30-34 | 45 | 4:35:09 | 5:00:23 | 5:26:27 | 5:36:35 | 6:13:27 | 4:35:09 |
| F35-39 | 39 | 4:44:06 | 4:46:57 | 4:59:03 | 5:02:34 | 6:15:15 | 4:44:06 |
| F40-44 | 26 | 4:20:52 | 4:44:56 | 4:50:14 | 5:09:38 | 5:24:22 | 4:20:52 |
| F45-49 | 13 | 5:12:17 | 5:12:17 | 5:39:25 | 5:52:23 | 6:14:57 | 5:12:17 |
| F50-54 | 16 | 5:01:17 | 5:01:17 | 5:05:40 | 5:33:26 | 6:03:58 | 5:01:17 |
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.