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 | 575 | 4:30:00 | 4:44:19 | 4:59:01 | 5:19:55 | 6:01:57 | 4:16:57 |
| M18-24 | 43 | 4:29:51 | 4:39:03 | 4:48:04 | 5:02:55 | 5:45:15 | 4:29:51 |
| M25-29 | 87 | 4:16:57 | 4:42:55 | 4:51:00 | 5:11:23 | 5:53:41 | 4:16:57 |
| M30-34 | 95 | 4:20:59 | 4:38:27 | 4:48:40 | 5:23:07 | 6:00:49 | 4:20:59 |
| M35-39 | 79 | 4:21:21 | 4:36:13 | 4:55:34 | 5:09:09 | 5:48:38 | 4:21:21 |
| M40-44 | 105 | 4:34:04 | 4:44:43 | 4:57:21 | 5:18:18 | 5:56:24 | 4:33:23 |
| M45-49 | 61 | 4:40:02 | 4:52:07 | 5:12:28 | 5:24:02 | 6:04:10 | 4:40:02 |
| M50-54 | 49 | 4:45:21 | 5:07:28 | 5:10:34 | 5:23:55 | 6:24:13 | 4:45:21 |
| M55-59 | 36 | 4:54:21 | 5:20:22 | 5:36:28 | 5:57:51 | 6:32:58 | 4:54:21 |
| M60-64 | 15 | 5:49:19 | 5:49:19 | 5:54:20 | 5:56:13 | 6:41:37 | 5:49:19 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 127 | 5:12:05 | 5:22:43 | 5:31:44 | 5:43:03 | 6:32:33 | 4:48:04 |
| F18-24 | 8 | 5:14:26 | 5:14:26 | 5:14:26 | 5:21:00 | 5:44:59 | 5:14:26 |
| F25-29 | 17 | 5:12:05 | 5:12:05 | 5:26:51 | 6:00:58 | 6:46:09 | 5:12:05 |
| F30-34 | 27 | 4:48:04 | 5:31:44 | 5:35:24 | 5:53:26 | 6:51:47 | 4:48:04 |
| F35-39 | 20 | 5:12:48 | 5:12:48 | 5:15:27 | 5:41:30 | 6:10:58 | 5:12:48 |
| F40-44 | 22 | 5:22:43 | 5:28:15 | 5:29:01 | 5:41:41 | 6:16:32 | 5:22:43 |
| F45-49 | 11 | 5:42:08 | 5:42:08 | 5:56:48 | 6:11:40 | 6:39:41 | 5:42:08 |
| F50-54 | 13 | 5:31:00 | 5:31:00 | 5:41:32 | 5:53:01 | 6:31:02 | 5:31:00 |
| F55-59 | 7 | 5:39:50 | 5:39:50 | 5:39:50 | 5:51:45 | 6:37:01 | 5:39:50 |
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.