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 | 1,025 | 4:18:33 | 4:48:54 | 5:06:10 | 5:27:16 | 6:08:02 | 3:56:29 |
| M18-24 | 121 | 4:28:43 | 4:49:40 | 5:06:09 | 5:20:33 | 5:57:56 | 4:26:19 |
| M25-29 | 160 | 4:03:20 | 4:35:33 | 4:55:59 | 5:17:18 | 6:04:45 | 3:56:29 |
| M30-34 | 155 | 4:18:33 | 4:38:39 | 4:59:01 | 5:20:57 | 5:57:32 | 4:12:00 |
| M35-39 | 142 | 4:10:45 | 4:50:33 | 5:08:03 | 5:29:01 | 6:07:10 | 4:07:39 |
| M40-44 | 129 | 4:12:39 | 4:39:55 | 4:59:17 | 5:34:29 | 6:21:48 | 4:12:34 |
| M45-49 | 97 | 4:22:14 | 4:50:43 | 5:10:48 | 5:33:05 | 6:12:37 | 4:22:14 |
| M50-54 | 89 | 4:35:28 | 5:06:26 | 5:18:57 | 5:37:13 | 6:15:01 | 4:35:28 |
| M55-59 | 72 | 4:42:06 | 5:00:03 | 5:07:15 | 5:28:04 | 6:10:29 | 4:42:06 |
| M60-64 | 43 | 5:02:20 | 5:20:59 | 5:25:55 | 5:38:16 | 6:04:10 | 5:02:20 |
| M65-69 | 13 | 5:14:44 | 5:14:44 | 5:30:24 | 5:31:00 | 6:43:07 | 5:14:44 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 413 | 4:52:41 | 5:13:36 | 5:30:35 | 5:49:18 | 6:30:27 | 4:35:04 |
| F18-24 | 36 | 5:08:33 | 5:15:21 | 5:28:17 | 5:45:47 | 6:22:10 | 5:08:33 |
| F25-29 | 91 | 4:35:04 | 5:04:18 | 5:23:31 | 5:46:10 | 6:39:13 | 4:35:04 |
| F30-34 | 63 | 4:43:19 | 4:58:44 | 5:30:22 | 5:50:49 | 6:30:38 | 4:43:19 |
| F35-39 | 51 | 4:55:27 | 5:21:08 | 5:45:20 | 6:00:38 | 6:30:10 | 4:55:27 |
| F40-44 | 68 | 4:55:04 | 5:14:08 | 5:32:36 | 5:41:51 | 6:18:26 | 4:55:04 |
| F45-49 | 40 | 5:11:05 | 5:23:17 | 5:27:40 | 5:45:01 | 6:19:57 | 5:11:05 |
| F50-54 | 32 | 5:26:25 | 5:40:04 | 5:52:22 | 5:59:32 | 6:48:22 | 5:26:25 |
| F55-59 | 18 | 5:01:46 | 5:01:46 | 5:12:54 | 5:18:47 | 6:00:45 | 5:01:46 |
| F60-64 | 9 | 5:39:59 | 5:39:59 | 5:39:59 | 5:40:47 | 6:53:50 | 5:39:59 |
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.