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 | 1,337 | 4:06:59 | 4:34:22 | 4:48:13 | 5:03:26 | 5:37:14 | 3:53:19 |
| MPRO | 16 | 3:53:19 | 3:53:19 | 3:54:40 | 3:58:16 | 4:00:38 | 3:53:19 |
| M18-24 | 73 | 4:06:59 | 4:17:48 | 4:28:19 | 4:46:46 | 5:27:23 | 4:06:59 |
| M25-29 | 171 | 4:17:24 | 4:36:52 | 4:47:33 | 5:07:14 | 5:37:14 | 4:13:51 |
| M30-34 | 203 | 4:15:21 | 4:30:54 | 4:44:37 | 5:02:44 | 5:41:21 | 4:08:28 |
| M35-39 | 231 | 4:23:31 | 4:39:31 | 4:51:24 | 5:01:45 | 5:38:25 | 4:08:05 |
| M40-44 | 282 | 4:27:04 | 4:38:06 | 4:49:42 | 5:02:57 | 5:30:39 | 4:15:32 |
| M45-49 | 164 | 4:27:30 | 4:48:43 | 4:52:34 | 5:06:48 | 5:33:22 | 4:24:55 |
| M50-54 | 96 | 4:43:58 | 4:57:20 | 5:06:13 | 5:20:10 | 5:47:19 | 4:43:58 |
| M55-59 | 45 | 4:53:35 | 5:08:03 | 5:12:14 | 5:26:08 | 5:58:55 | 4:53:35 |
| M60-64 | 19 | 5:09:07 | 5:09:07 | 5:18:03 | 5:35:42 | 5:58:17 | 5:09:07 |
| M65-69 | 8 | 5:36:08 | 5:36:08 | 5:36:08 | 5:40:07 | 6:19:13 | 5:36:08 |
| MUNKNOWN | 26 | 4:44:13 | 4:46:45 | 4:56:47 | 5:02:51 | 5:21:49 | 4:44:13 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 526 | 4:38:50 | 4:55:08 | 5:06:12 | 5:24:26 | 5:58:40 | 4:15:41 |
| F18-24 | 27 | 5:01:33 | 5:01:58 | 5:02:12 | 5:23:24 | 5:45:29 | 5:01:33 |
| F25-29 | 105 | 4:46:39 | 4:56:43 | 5:06:12 | 5:24:03 | 5:55:04 | 4:39:54 |
| F30-34 | 110 | 4:38:50 | 4:44:53 | 4:57:14 | 5:22:15 | 5:59:52 | 4:37:53 |
| F35-39 | 84 | 4:42:40 | 4:58:27 | 5:06:06 | 5:24:35 | 6:01:27 | 4:42:40 |
| F40-44 | 75 | 4:50:01 | 4:59:16 | 5:13:37 | 5:21:08 | 5:57:30 | 4:50:01 |
| F45-49 | 52 | 4:53:37 | 5:07:10 | 5:13:51 | 5:24:13 | 5:56:55 | 4:53:37 |
| F50-54 | 33 | 5:16:06 | 5:19:50 | 5:31:31 | 5:47:09 | 6:23:19 | 5:16:06 |
| F55-59 | 14 | 4:46:30 | 4:46:30 | 5:42:36 | 5:44:11 | 6:09:04 | 4:46:30 |
| FUNKNOWN | 21 | 4:54:49 | 4:55:08 | 4:57:21 | 5:19:39 | 5:49:12 | 4:54:49 |
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.