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 | 665 | 4:13:55 | 4:28:48 | 4:36:15 | 4:52:59 | 5:31:49 | 4:04:12 |
| M18-24 | 34 | 4:10:01 | 4:14:37 | 4:15:28 | 4:19:32 | 5:05:04 | 4:10:01 |
| M25-29 | 86 | 4:04:12 | 4:18:34 | 4:29:41 | 4:43:44 | 5:20:14 | 4:04:12 |
| M30-34 | 130 | 4:09:02 | 4:27:09 | 4:34:55 | 4:49:20 | 5:29:15 | 4:04:33 |
| M35-39 | 105 | 4:31:10 | 4:36:15 | 4:43:14 | 4:52:59 | 5:25:51 | 4:28:24 |
| M40-44 | 96 | 4:13:47 | 4:32:59 | 4:35:22 | 4:51:48 | 5:26:10 | 4:13:47 |
| M45-49 | 97 | 4:22:01 | 4:32:27 | 4:41:35 | 4:59:50 | 5:32:51 | 4:22:01 |
| M50-54 | 61 | 4:13:56 | 4:34:28 | 4:54:16 | 5:07:56 | 5:54:53 | 4:13:56 |
| M55-59 | 35 | 4:46:30 | 5:03:59 | 5:14:01 | 5:24:16 | 5:58:10 | 4:46:30 |
| M60-64 | 13 | 5:16:03 | 5:16:03 | 5:25:00 | 5:44:30 | 6:02:56 | 5:16:03 |
| M65-69 | 6 | 5:00:30 | 5:00:30 | 5:00:30 | 5:26:20 | 6:15:58 | 5:00:30 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 158 | 4:24:14 | 4:42:53 | 4:59:39 | 5:25:52 | 6:04:18 | 4:22:06 |
| F18-24 | 7 | 5:20:59 | 5:20:59 | 5:20:59 | 5:29:29 | 5:56:06 | 5:20:59 |
| F25-29 | 25 | 4:32:16 | 4:35:52 | 4:51:16 | 4:59:59 | 5:46:28 | 4:32:16 |
| F30-34 | 25 | 4:32:18 | 4:32:19 | 4:33:50 | 5:20:01 | 6:04:01 | 4:32:18 |
| F35-39 | 27 | 4:24:14 | 4:42:53 | 4:53:06 | 5:16:17 | 6:02:25 | 4:24:14 |
| F40-44 | 25 | 4:48:52 | 5:33:02 | 5:40:26 | 5:41:14 | 6:09:01 | 4:48:52 |
| F45-49 | 15 | 4:46:25 | 4:46:25 | 5:04:31 | 5:15:21 | 6:12:37 | 4:46:25 |
| F50-54 | 19 | 5:06:42 | 5:06:42 | 5:17:18 | 5:43:37 | 6:15:03 | 5:06:42 |
| F55-59 | 9 | 4:59:39 | 4:59:39 | 4:59:39 | 5:49:10 | 6:55:06 | 4:59:39 |
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.