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 | 1,296 | 4:33:12 | 4:56:32 | 5:08:51 | 5:28:05 | 6:03:22 | 4:07:21 |
| M18-24 | 29 | 4:50:32 | 4:51:39 | 4:55:16 | 5:03:33 | 5:38:04 | 4:50:32 |
| M25-29 | 108 | 4:49:20 | 4:51:30 | 4:59:48 | 5:14:36 | 5:55:35 | 4:28:09 |
| M30-34 | 243 | 4:29:59 | 4:44:33 | 5:03:25 | 5:22:20 | 5:55:57 | 4:10:36 |
| M35-39 | 324 | 4:32:00 | 4:55:35 | 5:04:49 | 5:26:41 | 5:57:39 | 4:07:21 |
| M40-44 | 312 | 4:36:56 | 4:58:06 | 5:12:50 | 5:31:10 | 6:04:49 | 4:08:21 |
| M45-49 | 150 | 4:33:44 | 5:04:14 | 5:14:04 | 5:33:22 | 6:09:44 | 4:33:12 |
| M50-54 | 67 | 4:44:22 | 5:15:32 | 5:25:12 | 5:43:37 | 6:21:45 | 4:44:22 |
| M55-59 | 35 | 5:04:53 | 5:20:49 | 5:32:54 | 5:42:54 | 6:21:22 | 5:04:53 |
| M60-64 | 22 | 5:30:20 | 5:46:18 | 5:59:13 | 6:13:43 | 6:38:42 | 5:30:20 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 392 | 4:56:41 | 5:25:25 | 5:36:43 | 5:56:09 | 6:30:25 | 4:45:31 |
| F18-24 | 14 | 5:22:17 | 5:22:17 | 5:22:25 | 5:28:50 | 6:04:29 | 5:22:17 |
| F25-29 | 58 | 4:52:09 | 5:11:10 | 5:22:50 | 5:40:44 | 6:18:37 | 4:52:09 |
| F30-34 | 90 | 4:45:31 | 5:18:38 | 5:35:58 | 5:57:09 | 6:27:33 | 4:45:31 |
| F35-39 | 109 | 5:10:13 | 5:26:49 | 5:40:33 | 5:54:11 | 6:39:23 | 4:56:41 |
| F40-44 | 66 | 5:27:29 | 5:35:28 | 5:44:52 | 6:04:56 | 6:38:33 | 5:27:29 |
| F45-49 | 34 | 5:29:18 | 5:35:39 | 5:42:04 | 5:58:11 | 6:45:33 | 5:29:18 |
| F50-54 | 11 | 5:27:37 | 5:27:37 | 5:32:34 | 5:35:21 | 6:08:12 | 5:27:37 |
| F55-59 | 7 | 6:35:08 | 6:35:08 | 6:35:08 | 6:43:21 | 7:06:09 | 6:35:08 |
Source: Seffrin A., Nikolaidis P.T., Andrade M.S., Villiger E., Rosemann T., Weiss K., Ferreira D., Knechtle B. (2026). A dataset of 2.7 million IRONMAN triathlon records with transition times (2002-2026), v3.0.0. Zenodo. CC BY 4.0. doi:10.5281/zenodo.22097794.