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 | 532 | 4:20:18 | 4:43:34 | 4:54:44 | 5:12:27 | 5:50:51 | 4:05:58 |
| M18-24 | 23 | 4:26:40 | 4:32:50 | 4:46:55 | 5:09:00 | 6:37:07 | 4:26:40 |
| M25-29 | 61 | 4:24:10 | 4:38:34 | 4:53:45 | 5:11:42 | 5:57:23 | 4:24:10 |
| M30-34 | 55 | 4:05:58 | 4:23:19 | 4:39:55 | 5:07:47 | 5:40:12 | 4:05:58 |
| M35-39 | 83 | 4:15:40 | 4:39:47 | 4:48:48 | 5:00:30 | 5:34:53 | 4:15:40 |
| M40-44 | 106 | 4:20:18 | 4:47:29 | 4:55:20 | 5:15:38 | 5:44:06 | 4:13:28 |
| M45-49 | 77 | 4:19:49 | 4:45:39 | 5:02:45 | 5:12:24 | 5:47:52 | 4:19:49 |
| M50-54 | 57 | 4:29:45 | 5:03:06 | 5:05:50 | 5:20:37 | 6:03:07 | 4:29:45 |
| M55-59 | 37 | 4:49:43 | 4:55:42 | 5:04:43 | 5:15:31 | 5:54:59 | 4:49:43 |
| M60-64 | 15 | 5:02:23 | 5:02:23 | 5:27:36 | 5:30:00 | 6:29:07 | 5:02:23 |
| M65-69 | 7 | 5:02:45 | 5:02:45 | 5:02:45 | 5:47:26 | 6:03:51 | 5:02:45 |
| MHC | 7 | 4:46:57 | 4:46:57 | 4:46:57 | 5:32:35 | 6:34:01 | 4:46:57 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 161 | 4:51:14 | 5:11:38 | 5:24:28 | 5:39:45 | 6:17:48 | 4:50:15 |
| F18-24 | 5 | 5:45:13 | 5:45:13 | 5:45:13 | 5:45:13 | 6:25:13 | 5:45:13 |
| F25-29 | 21 | 4:51:14 | 5:11:41 | 5:24:50 | 5:33:46 | 6:06:58 | 4:51:14 |
| F30-34 | 35 | 4:50:15 | 4:52:34 | 5:11:38 | 5:24:28 | 6:10:54 | 4:50:15 |
| F35-39 | 24 | 5:05:17 | 5:09:33 | 5:32:53 | 5:48:08 | 6:19:36 | 5:05:17 |
| F40-44 | 28 | 5:09:07 | 5:22:28 | 5:22:48 | 5:34:57 | 6:14:50 | 5:09:07 |
| F45-49 | 16 | 5:14:20 | 5:14:20 | 5:28:52 | 5:58:10 | 6:28:01 | 5:14:20 |
| F50-54 | 20 | 5:03:12 | 5:03:12 | 5:20:25 | 5:46:29 | 6:26:00 | 5:03:12 |
| F55-59 | 8 | 5:39:45 | 5:39:45 | 5:39:45 | 5:50:39 | 5:58:51 | 5:39:45 |
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.