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 | 817 | 3:54:23 | 4:10:31 | 4:23:27 | 4:36:52 | 5:14:34 | 3:33:20 |
| M18-24 | 46 | 3:57:40 | 4:09:07 | 4:11:42 | 4:22:29 | 5:15:39 | 3:57:40 |
| M25-29 | 92 | 3:33:20 | 3:58:23 | 4:19:46 | 4:31:38 | 5:11:07 | 3:33:20 |
| M30-34 | 114 | 3:41:21 | 3:58:32 | 4:06:04 | 4:21:16 | 4:59:52 | 3:34:51 |
| M35-39 | 103 | 3:59:40 | 4:12:26 | 4:22:43 | 4:35:43 | 5:06:29 | 3:56:13 |
| M40-44 | 133 | 3:49:58 | 4:05:12 | 4:21:56 | 4:30:48 | 5:04:26 | 3:43:41 |
| M45-49 | 104 | 4:08:39 | 4:24:51 | 4:31:07 | 4:38:50 | 5:14:34 | 4:06:51 |
| M50-54 | 92 | 4:09:42 | 4:20:25 | 4:31:12 | 4:48:55 | 5:32:15 | 4:09:42 |
| M55-59 | 75 | 4:17:27 | 4:24:48 | 4:33:33 | 4:51:58 | 5:29:47 | 4:17:27 |
| M60-64 | 38 | 4:16:13 | 4:24:12 | 4:36:19 | 4:53:25 | 5:23:55 | 4:16:13 |
| M65-69 | 15 | 4:38:31 | 4:38:31 | 4:40:11 | 4:44:43 | 5:30:09 | 4:38:31 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 302 | 4:13:42 | 4:35:19 | 4:47:40 | 5:00:35 | 5:39:21 | 4:08:14 |
| F18-24 | 7 | 4:53:30 | 4:53:30 | 4:53:30 | 5:17:00 | 5:33:08 | 4:53:30 |
| F25-29 | 34 | 4:13:42 | 4:21:29 | 4:41:22 | 4:51:24 | 5:40:57 | 4:13:42 |
| F30-34 | 44 | 4:43:26 | 4:47:18 | 4:49:24 | 4:56:39 | 5:27:14 | 4:43:26 |
| F35-39 | 54 | 4:08:14 | 4:24:36 | 4:30:23 | 4:53:35 | 5:36:46 | 4:08:14 |
| F40-44 | 43 | 4:12:51 | 4:29:15 | 4:40:42 | 4:51:49 | 5:28:50 | 4:12:51 |
| F45-49 | 38 | 4:15:11 | 4:28:41 | 4:47:23 | 4:56:02 | 5:31:55 | 4:15:11 |
| F50-54 | 26 | 4:35:19 | 4:36:02 | 4:47:21 | 4:57:34 | 5:27:40 | 4:35:19 |
| F55-59 | 34 | 4:43:00 | 4:43:11 | 5:05:33 | 5:24:53 | 5:48:16 | 4:43:00 |
| F60-64 | 12 | 5:03:30 | 5:03:30 | 5:09:03 | 5:09:58 | 5:44:20 | 5:03:30 |
| F65-69 | 5 | 5:26:10 | 5:26:10 | 5:26:10 | 5:26:10 | 6:41:53 | 5:26:10 |
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.