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 | 2,014 | 4:08:19 | 4:23:07 | 4:32:31 | 4:45:17 | 5:15:47 | 3:51:06 |
| M18-24 | 30 | 4:03:32 | 4:06:36 | 4:21:01 | 4:31:10 | 5:09:03 | 4:03:32 |
| M25-29 | 120 | 3:58:14 | 4:04:33 | 4:16:44 | 4:33:17 | 5:08:29 | 3:51:06 |
| M30-34 | 235 | 4:08:47 | 4:15:47 | 4:20:43 | 4:34:44 | 5:04:42 | 3:56:43 |
| M35-39 | 283 | 4:08:54 | 4:20:14 | 4:25:00 | 4:34:33 | 5:04:30 | 4:01:23 |
| M40-44 | 346 | 4:08:09 | 4:23:03 | 4:28:47 | 4:40:38 | 5:10:32 | 3:57:55 |
| M45-49 | 378 | 4:17:55 | 4:27:10 | 4:35:56 | 4:45:40 | 5:11:13 | 4:04:59 |
| M50-54 | 312 | 4:25:46 | 4:35:52 | 4:44:04 | 4:55:26 | 5:24:16 | 4:20:13 |
| M55-59 | 201 | 4:33:47 | 4:45:17 | 4:52:09 | 4:59:50 | 5:32:14 | 4:32:38 |
| M60-64 | 74 | 4:40:10 | 4:52:15 | 5:00:07 | 5:09:32 | 5:40:55 | 4:40:10 |
| M65-69 | 23 | 4:51:39 | 4:59:00 | 5:34:18 | 5:37:05 | 6:22:25 | 4:51:39 |
| M70-74 | 11 | 5:51:45 | 5:51:45 | 5:53:41 | 6:01:10 | 6:15:55 | 5:51:45 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 354 | 4:29:03 | 4:48:19 | 4:59:25 | 5:16:30 | 5:48:48 | 4:22:05 |
| F18-24 | 13 | 4:23:46 | 4:23:46 | 4:36:37 | 5:17:54 | 5:51:18 | 4:23:46 |
| F25-29 | 42 | 4:29:03 | 4:35:55 | 4:58:59 | 5:05:17 | 5:52:24 | 4:29:03 |
| F30-34 | 45 | 4:22:05 | 4:35:33 | 4:46:48 | 5:06:45 | 5:37:37 | 4:22:05 |
| F35-39 | 44 | 4:37:04 | 4:37:44 | 4:48:58 | 5:00:44 | 5:35:31 | 4:37:04 |
| F40-44 | 49 | 4:47:19 | 4:50:17 | 4:57:10 | 5:11:27 | 5:38:50 | 4:47:19 |
| F45-49 | 76 | 4:48:03 | 4:55:46 | 5:15:12 | 5:25:32 | 5:47:32 | 4:48:03 |
| F50-54 | 49 | 4:38:05 | 4:51:05 | 4:59:26 | 5:18:57 | 5:53:57 | 4:38:05 |
| F55-59 | 29 | 5:20:58 | 5:21:16 | 5:28:43 | 5:49:04 | 6:23:32 | 5:20:58 |
| F60-64 | 5 | 5:20:20 | 5:20:20 | 5:20:20 | 5:20:20 | 7:12:16 | 5:20:20 |
Source: Seffrin A., Nikolaidis P.T., Andrade M.S., Villiger E., Rosemann T., Weiss K., Ferreira D., Knechtle B. (2026). A dataset of 2.7 million IRONMAN triathlon records with transition times (2002-2026), v3.0.0. Zenodo. CC BY 4.0. doi:10.5281/zenodo.22097794.