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 | 869 | 4:46:36 | 5:06:24 | 5:20:41 | 5:37:32 | 6:10:34 | 4:35:43 |
| M18-24 | 29 | 4:43:12 | 5:05:13 | 5:12:34 | 5:27:58 | 6:18:33 | 4:43:12 |
| M25-29 | 89 | 4:49:58 | 5:11:12 | 5:23:36 | 5:42:07 | 6:12:26 | 4:49:58 |
| M30-34 | 113 | 4:48:37 | 5:03:29 | 5:17:57 | 5:31:14 | 5:59:43 | 4:45:17 |
| M35-39 | 164 | 4:38:19 | 4:57:08 | 5:10:04 | 5:27:37 | 5:57:41 | 4:35:43 |
| M40-44 | 208 | 4:58:09 | 5:07:49 | 5:21:05 | 5:36:23 | 6:08:16 | 4:43:21 |
| M45-49 | 123 | 5:11:19 | 5:23:01 | 5:36:30 | 5:48:23 | 6:17:19 | 5:10:09 |
| M50-54 | 88 | 4:36:37 | 5:10:49 | 5:20:45 | 5:37:14 | 6:30:04 | 4:36:37 |
| M55-59 | 36 | 5:03:43 | 5:05:50 | 5:29:43 | 5:49:36 | 6:18:46 | 5:03:43 |
| M60-64 | 15 | 5:28:43 | 5:28:43 | 5:30:07 | 6:05:22 | 6:51:56 | 5:28:43 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 154 | 5:16:06 | 5:27:26 | 5:41:34 | 6:02:36 | 6:35:54 | 4:48:53 |
| F25-29 | 20 | 5:28:55 | 5:28:55 | 5:34:54 | 5:54:24 | 6:34:02 | 5:28:55 |
| F30-34 | 26 | 4:48:53 | 5:27:26 | 5:44:35 | 6:03:45 | 6:32:26 | 4:48:53 |
| F35-39 | 26 | 5:16:06 | 5:16:15 | 5:26:36 | 5:58:58 | 6:30:00 | 5:16:06 |
| F40-44 | 29 | 5:28:40 | 5:40:47 | 5:44:50 | 5:54:45 | 6:28:04 | 5:28:40 |
| F45-49 | 27 | 5:24:47 | 5:46:30 | 6:05:40 | 6:18:11 | 6:37:31 | 5:24:47 |
| F50-54 | 14 | 5:41:34 | 5:41:34 | 6:11:51 | 6:20:27 | 6:43:37 | 5:41:34 |
| F55-59 | 6 | 5:56:27 | 5:56:27 | 5:56:27 | 6:02:36 | 6:09:06 | 5:56:27 |
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.