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 | 621 | 4:35:37 | 5:00:02 | 5:14:43 | 5:31:55 | 6:11:44 | 3:59:47 |
| M18-24 | 38 | 4:17:01 | 4:30:09 | 4:50:09 | 5:13:43 | 5:46:33 | 4:17:01 |
| M25-29 | 74 | 4:51:27 | 5:16:11 | 5:25:00 | 5:31:24 | 5:52:51 | 4:51:27 |
| M30-34 | 119 | 4:31:11 | 4:47:21 | 5:06:35 | 5:28:40 | 6:07:30 | 3:59:47 |
| M35-39 | 132 | 4:35:37 | 5:01:01 | 5:15:45 | 5:33:06 | 6:12:10 | 4:31:28 |
| M40-44 | 120 | 4:52:21 | 5:08:31 | 5:13:37 | 5:32:42 | 6:19:49 | 4:51:23 |
| M45-49 | 71 | 4:38:21 | 4:55:35 | 5:06:34 | 5:37:36 | 6:11:44 | 4:38:21 |
| M50-54 | 34 | 5:02:15 | 5:07:06 | 5:22:18 | 5:39:45 | 6:31:49 | 5:02:15 |
| M55-59 | 9 | 5:26:50 | 5:26:50 | 5:26:50 | 5:26:59 | 6:08:41 | 5:26:50 |
| M60-64 | 15 | 5:37:28 | 5:37:28 | 5:41:17 | 5:47:54 | 6:33:26 | 5:37:28 |
| M65-69 | 7 | 6:06:51 | 6:06:51 | 6:06:51 | 6:45:46 | 6:59:15 | 6:06:51 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 123 | 5:11:02 | 5:28:53 | 5:38:26 | 5:53:40 | 6:35:24 | 4:54:12 |
| F18-24 | 7 | 5:43:25 | 5:43:25 | 5:43:25 | 6:22:04 | 6:40:49 | 5:43:25 |
| F25-29 | 19 | 5:15:05 | 5:15:05 | 5:36:26 | 6:02:15 | 6:40:18 | 5:15:05 |
| F30-34 | 27 | 4:54:12 | 5:11:02 | 5:18:52 | 5:47:55 | 6:14:49 | 4:54:12 |
| F35-39 | 30 | 5:43:05 | 5:44:27 | 5:46:49 | 6:06:49 | 6:36:01 | 5:43:05 |
| F40-44 | 15 | 5:12:07 | 5:12:07 | 5:28:53 | 5:38:44 | 6:13:12 | 5:12:07 |
| F45-49 | 15 | 5:38:26 | 5:38:26 | 5:51:21 | 5:56:59 | 6:58:38 | 5:38:26 |
| F50-54 | 9 | 5:18:14 | 5:18:14 | 5:18:14 | 5:35:42 | 6:53:16 | 5:18:14 |
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.