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 | 1,977 | 4:12:48 | 4:29:40 | 4:38:34 | 4:53:13 | 5:22:55 | 3:56:29 |
| M18-24 | 65 | 3:56:29 | 4:16:57 | 4:24:10 | 4:39:21 | 5:05:58 | 3:56:29 |
| M25-29 | 140 | 4:05:29 | 4:20:32 | 4:28:35 | 4:36:14 | 5:15:52 | 4:00:26 |
| M30-34 | 242 | 4:11:17 | 4:19:37 | 4:31:05 | 4:44:44 | 5:13:28 | 4:09:29 |
| M35-39 | 295 | 4:11:48 | 4:26:24 | 4:34:41 | 4:46:12 | 5:13:47 | 4:09:13 |
| M40-44 | 349 | 4:13:37 | 4:29:43 | 4:37:28 | 4:48:46 | 5:19:35 | 4:06:10 |
| M45-49 | 350 | 4:22:00 | 4:32:37 | 4:45:13 | 4:54:39 | 5:22:40 | 4:15:29 |
| M50-54 | 294 | 4:32:34 | 4:45:25 | 4:52:09 | 5:05:22 | 5:34:30 | 4:23:04 |
| M55-59 | 142 | 4:34:48 | 4:53:46 | 4:58:47 | 5:13:52 | 5:46:10 | 4:33:48 |
| M60-64 | 70 | 4:44:12 | 5:01:19 | 5:08:23 | 5:19:15 | 5:53:28 | 4:44:12 |
| M65-69 | 22 | 5:17:56 | 5:19:05 | 5:20:29 | 5:27:14 | 6:15:06 | 5:17:56 |
| M70-74 | 7 | 5:30:50 | 5:30:50 | 5:30:50 | 6:21:29 | 6:30:26 | 5:30:50 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 498 | 4:34:02 | 4:53:15 | 5:04:28 | 5:22:08 | 6:00:50 | 4:17:59 |
| F18-24 | 11 | 4:59:41 | 4:59:41 | 5:22:52 | 5:24:21 | 6:07:43 | 4:59:41 |
| F25-29 | 52 | 4:23:04 | 4:41:45 | 4:49:45 | 5:21:40 | 5:51:58 | 4:23:04 |
| F30-34 | 67 | 4:22:54 | 4:37:07 | 4:50:36 | 4:58:18 | 5:36:55 | 4:22:54 |
| F35-39 | 67 | 4:17:59 | 4:45:04 | 4:54:26 | 5:11:46 | 5:49:15 | 4:17:59 |
| F40-44 | 84 | 4:45:27 | 4:53:26 | 5:04:23 | 5:14:28 | 5:55:53 | 4:45:27 |
| F45-49 | 84 | 4:52:37 | 5:14:25 | 5:25:29 | 5:39:56 | 6:04:59 | 4:52:37 |
| F50-54 | 94 | 4:55:41 | 5:15:31 | 5:20:44 | 5:39:18 | 6:16:13 | 4:55:41 |
| F55-59 | 27 | 5:02:16 | 5:06:14 | 5:17:31 | 5:34:38 | 6:16:09 | 5:02:16 |
| F60-64 | 9 | 5:41:35 | 5:41:35 | 5:41:35 | 6:19:17 | 6:30:51 | 5:41:35 |
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.