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 | 660 | 4:12:46 | 4:31:55 | 4:39:57 | 4:51:38 | 5:22:25 | 4:01:06 |
| M18-24 | 18 | 4:07:13 | 4:07:13 | 4:07:17 | 4:22:31 | 4:46:12 | 4:07:13 |
| M25-29 | 59 | 4:01:06 | 4:12:46 | 4:21:39 | 4:39:10 | 5:14:06 | 4:01:06 |
| M30-34 | 91 | 4:09:33 | 4:31:43 | 4:37:38 | 4:50:25 | 5:13:48 | 4:09:33 |
| M35-39 | 94 | 4:17:00 | 4:29:25 | 4:34:32 | 4:42:37 | 5:22:56 | 4:17:00 |
| M40-44 | 117 | 4:30:06 | 4:33:49 | 4:38:44 | 4:50:22 | 5:23:24 | 4:27:00 |
| M45-49 | 112 | 4:32:46 | 4:37:46 | 4:44:59 | 4:56:06 | 5:25:54 | 4:31:59 |
| M50-54 | 88 | 4:22:05 | 4:44:33 | 4:53:45 | 5:04:47 | 5:20:41 | 4:22:05 |
| M55-59 | 44 | 4:48:47 | 4:56:23 | 5:00:16 | 5:10:55 | 5:34:29 | 4:48:47 |
| M60-64 | 25 | 4:43:44 | 5:00:04 | 5:01:45 | 5:18:15 | 5:48:06 | 4:43:44 |
| M65-69 | 7 | 4:55:55 | 4:55:55 | 4:55:55 | 5:15:39 | 6:43:03 | 4:55:55 |
| M70-74 | 5 | 6:12:51 | 6:12:51 | 6:12:51 | 6:12:51 | 7:15:04 | 6:12:51 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 123 | 4:46:17 | 5:00:13 | 5:06:29 | 5:21:43 | 5:52:35 | 4:44:10 |
| F18-24 | 7 | 4:48:08 | 4:48:08 | 4:48:08 | 5:09:09 | 5:26:15 | 4:48:08 |
| F25-29 | 12 | 4:54:47 | 4:54:47 | 5:03:10 | 5:06:09 | 5:37:47 | 4:54:47 |
| F30-34 | 28 | 4:44:10 | 5:00:13 | 5:02:03 | 5:10:35 | 5:39:40 | 4:44:10 |
| F35-39 | 10 | 4:46:17 | 4:46:17 | 4:46:17 | 4:56:48 | 5:30:22 | 4:46:17 |
| F40-44 | 22 | 4:50:46 | 5:06:29 | 5:07:38 | 5:34:38 | 6:00:33 | 4:50:46 |
| F45-49 | 24 | 5:02:26 | 5:16:58 | 5:17:14 | 5:28:41 | 5:50:38 | 5:02:26 |
| F50-54 | 13 | 5:27:26 | 5:27:26 | 5:49:17 | 5:53:38 | 6:29:11 | 5:27:26 |
| F55-59 | 7 | 5:26:45 | 5:26:45 | 5:26:45 | 5:40:34 | 6:13:48 | 5:26:45 |
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.