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 | 1,926 | 4:03:38 | 4:33:19 | 4:43:35 | 4:56:47 | 5:26:36 | 3:41:05 |
| MPRO | 20 | 3:41:05 | 3:41:05 | 3:46:18 | 3:47:45 | 3:49:51 | 3:41:05 |
| M18-24 | 79 | 4:15:28 | 4:29:04 | 4:38:30 | 4:51:28 | 5:21:04 | 4:15:28 |
| M25-29 | 229 | 4:10:13 | 4:26:30 | 4:37:22 | 4:53:29 | 5:26:33 | 4:00:54 |
| M30-34 | 307 | 4:16:22 | 4:27:47 | 4:35:07 | 4:47:59 | 5:16:36 | 4:03:38 |
| M35-39 | 323 | 4:16:45 | 4:33:46 | 4:42:44 | 4:52:31 | 5:20:47 | 4:08:17 |
| M40-44 | 269 | 4:30:33 | 4:37:22 | 4:44:55 | 4:55:35 | 5:22:58 | 4:23:23 |
| M45-49 | 285 | 4:27:18 | 4:42:22 | 4:50:21 | 5:04:53 | 5:31:56 | 4:21:58 |
| M50-54 | 224 | 4:35:27 | 4:41:53 | 4:53:58 | 5:02:11 | 5:37:52 | 4:34:45 |
| M55-59 | 112 | 4:41:05 | 4:55:01 | 5:01:46 | 5:16:14 | 5:47:47 | 4:33:33 |
| M60-64 | 56 | 4:54:37 | 5:03:03 | 5:10:23 | 5:18:45 | 6:00:56 | 4:54:37 |
| M65-69 | 12 | 5:44:49 | 5:44:49 | 5:54:57 | 5:56:17 | 6:23:40 | 5:44:49 |
| M70-74 | 5 | 5:38:55 | 5:38:55 | 5:38:55 | 5:38:55 | 6:24:42 | 5:38:55 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 317 | 4:18:36 | 4:53:47 | 5:06:56 | 5:26:40 | 6:01:25 | 4:12:24 |
| FPRO | 8 | 4:12:24 | 4:12:24 | 4:12:24 | 4:13:32 | 4:18:36 | 4:12:24 |
| F18-24 | 21 | 4:39:35 | 5:03:25 | 5:04:23 | 5:20:44 | 5:37:50 | 4:39:35 |
| F25-29 | 59 | 4:53:26 | 4:58:45 | 5:14:51 | 5:24:10 | 5:55:05 | 4:53:26 |
| F30-34 | 61 | 4:47:45 | 4:53:41 | 4:56:38 | 5:22:01 | 5:54:04 | 4:47:45 |
| F35-39 | 30 | 5:00:08 | 5:05:57 | 5:08:41 | 5:32:53 | 6:09:43 | 5:00:08 |
| F40-44 | 45 | 5:04:40 | 5:08:56 | 5:19:36 | 5:26:40 | 5:51:32 | 5:04:40 |
| F45-49 | 34 | 5:06:56 | 5:11:01 | 5:16:22 | 5:33:18 | 6:02:19 | 5:06:56 |
| F50-54 | 39 | 4:43:13 | 5:11:47 | 5:24:11 | 5:41:51 | 6:07:58 | 4:43:13 |
| F55-59 | 16 | 5:24:32 | 5:24:32 | 5:49:58 | 5:55:00 | 6:15:33 | 5:24:32 |
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.