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 | 1,369 | 4:17:48 | 4:43:32 | 4:56:43 | 5:10:54 | 5:42:12 | 3:56:47 |
| MPRO | 31 | 3:56:47 | 3:59:04 | 4:02:00 | 4:07:46 | 4:18:43 | 3:56:47 |
| M18-24 | 31 | 4:26:01 | 4:31:13 | 4:49:58 | 4:57:27 | 5:26:22 | 4:26:01 |
| M25-29 | 121 | 4:24:22 | 4:41:09 | 4:48:52 | 4:59:11 | 5:26:17 | 4:23:56 |
| M30-34 | 186 | 4:30:12 | 4:42:14 | 4:48:48 | 4:59:27 | 5:30:32 | 4:27:17 |
| M35-39 | 263 | 4:33:34 | 4:51:16 | 4:59:42 | 5:09:51 | 5:35:57 | 4:31:00 |
| M40-44 | 258 | 4:37:14 | 4:49:21 | 4:59:47 | 5:13:42 | 5:41:12 | 4:29:56 |
| M45-49 | 254 | 4:36:48 | 4:57:21 | 5:10:33 | 5:23:38 | 5:56:05 | 4:30:42 |
| M50-54 | 144 | 4:53:33 | 5:06:46 | 5:12:44 | 5:27:09 | 5:54:53 | 4:47:31 |
| M55-59 | 58 | 4:59:26 | 5:04:35 | 5:15:30 | 5:30:52 | 6:11:24 | 4:59:26 |
| M60-64 | 15 | 5:35:57 | 5:35:57 | 5:51:46 | 6:13:39 | 6:53:55 | 5:35:57 |
| M65-69 | 6 | 5:59:06 | 5:59:06 | 5:59:06 | 6:05:24 | 6:11:48 | 5:59:06 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 214 | 4:34:21 | 4:53:05 | 5:12:49 | 5:31:47 | 6:06:54 | 4:23:31 |
| FPRO | 11 | 4:23:31 | 4:23:31 | 4:33:12 | 4:34:21 | 4:43:06 | 4:23:31 |
| F18-24 | 7 | 5:08:41 | 5:08:41 | 5:08:41 | 5:36:36 | 5:41:41 | 5:08:41 |
| F25-29 | 25 | 4:54:42 | 5:06:12 | 5:09:35 | 5:12:49 | 6:10:42 | 4:54:42 |
| F30-34 | 47 | 4:58:33 | 5:09:51 | 5:21:27 | 5:32:50 | 5:55:57 | 4:58:33 |
| F35-39 | 39 | 4:48:11 | 5:15:15 | 5:22:19 | 5:39:48 | 5:59:08 | 4:48:11 |
| F40-44 | 36 | 5:02:39 | 5:09:52 | 5:20:46 | 5:40:15 | 6:12:46 | 5:02:39 |
| F45-49 | 31 | 5:14:40 | 5:21:15 | 5:31:47 | 6:00:42 | 6:24:34 | 5:14:40 |
| F50-54 | 12 | 6:06:54 | 6:06:54 | 6:12:17 | 6:15:15 | 6:20:44 | 6:06:54 |
| F55-59 | 6 | 6:09:18 | 6:09:18 | 6:09:18 | 6:18:44 | 6:35:37 | 6:09:18 |
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.