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 | 776 | 4:33:43 | 4:50:15 | 5:04:05 | 5:27:23 | 6:13:48 | 4:12:49 |
| M18-24 | 42 | 4:22:42 | 4:55:29 | 5:05:13 | 5:28:49 | 6:18:53 | 4:22:42 |
| M25-29 | 107 | 4:23:27 | 4:46:49 | 5:02:09 | 5:22:08 | 6:00:28 | 4:12:49 |
| M30-34 | 127 | 4:42:08 | 4:50:15 | 5:07:50 | 5:23:34 | 6:01:42 | 4:32:20 |
| M35-39 | 94 | 4:21:46 | 4:44:12 | 4:52:58 | 5:16:11 | 6:03:07 | 4:21:46 |
| M40-44 | 105 | 4:33:43 | 4:44:03 | 4:58:33 | 5:21:47 | 6:10:48 | 4:33:29 |
| M45-49 | 105 | 4:49:09 | 4:55:04 | 5:07:12 | 5:32:52 | 6:32:04 | 4:37:05 |
| M50-54 | 94 | 4:34:30 | 4:57:42 | 5:10:34 | 5:33:57 | 6:31:20 | 4:34:30 |
| M55-59 | 55 | 5:00:21 | 5:02:15 | 5:15:42 | 5:35:49 | 6:28:06 | 5:00:21 |
| M60-64 | 32 | 5:18:43 | 5:19:21 | 5:52:42 | 6:03:33 | 6:39:17 | 5:18:43 |
| M65-69 | 10 | 5:49:36 | 5:49:36 | 5:49:36 | 6:03:43 | 6:24:22 | 5:49:36 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 333 | 5:01:25 | 5:25:52 | 5:41:54 | 6:05:05 | 6:48:54 | 4:34:35 |
| F18-24 | 8 | 4:58:50 | 4:58:50 | 4:58:50 | 5:57:24 | 6:51:36 | 4:58:50 |
| F25-29 | 40 | 5:08:57 | 5:11:54 | 5:32:46 | 5:51:06 | 6:18:22 | 5:08:57 |
| F30-34 | 45 | 4:40:06 | 5:25:22 | 5:34:19 | 5:50:47 | 6:45:42 | 4:40:06 |
| F35-39 | 51 | 5:01:25 | 5:18:59 | 5:39:55 | 6:00:33 | 6:43:49 | 5:01:25 |
| F40-44 | 53 | 4:34:35 | 5:26:21 | 5:39:38 | 5:56:10 | 6:52:14 | 4:34:35 |
| F45-49 | 50 | 5:07:12 | 5:26:41 | 5:37:19 | 5:52:07 | 6:36:38 | 5:07:12 |
| F50-54 | 38 | 5:22:51 | 5:28:41 | 5:37:18 | 6:06:28 | 6:45:10 | 5:22:51 |
| F55-59 | 27 | 5:58:41 | 6:08:53 | 6:19:47 | 6:47:46 | 7:19:40 | 5:58:41 |
| F60-64 | 12 | 6:04:33 | 6:04:33 | 6:59:44 | 7:07:59 | 7:19:48 | 6:04:33 |
| F65-69 | 7 | 6:08:39 | 6:08:39 | 6:08:39 | 6:30:32 | 7:43:06 | 6:08:39 |
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.