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 | 603 | 4:11:22 | 4:27:32 | 4:40:35 | 4:56:39 | 5:31:10 | 4:00:58 |
| M18-24 | 24 | 4:28:45 | 4:49:22 | 4:49:42 | 4:55:18 | 5:28:29 | 4:28:45 |
| M25-29 | 65 | 4:17:17 | 4:34:11 | 4:54:30 | 5:07:47 | 5:30:25 | 4:17:17 |
| M30-34 | 83 | 4:02:27 | 4:22:29 | 4:35:12 | 4:56:03 | 5:33:00 | 4:02:27 |
| M35-39 | 104 | 4:07:04 | 4:17:49 | 4:27:50 | 4:36:41 | 5:23:53 | 4:00:58 |
| M40-44 | 79 | 4:10:18 | 4:24:50 | 4:27:32 | 4:52:20 | 5:17:20 | 4:10:18 |
| M45-49 | 74 | 4:26:55 | 4:37:57 | 4:41:34 | 4:53:16 | 5:31:26 | 4:26:55 |
| M50-54 | 78 | 4:18:51 | 4:38:05 | 4:46:25 | 5:01:38 | 5:30:54 | 4:18:51 |
| M55-59 | 49 | 4:39:07 | 4:50:17 | 4:56:24 | 5:05:58 | 5:43:48 | 4:39:07 |
| M60-64 | 32 | 4:55:57 | 4:56:32 | 5:01:26 | 5:13:24 | 6:00:47 | 4:55:57 |
| M65-69 | 9 | 4:57:56 | 4:57:56 | 4:57:56 | 5:29:35 | 6:03:40 | 4:57:56 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 236 | 4:43:21 | 4:58:20 | 5:08:47 | 5:28:32 | 6:04:27 | 4:31:05 |
| F18-24 | 6 | 5:15:10 | 5:15:10 | 5:15:10 | 5:26:38 | 5:32:59 | 5:15:10 |
| F25-29 | 13 | 4:43:21 | 4:43:21 | 4:58:20 | 5:04:09 | 5:52:16 | 4:43:21 |
| F30-34 | 43 | 4:31:05 | 4:58:11 | 5:01:32 | 5:08:47 | 5:51:28 | 4:31:05 |
| F35-39 | 35 | 4:44:54 | 4:48:58 | 4:52:44 | 5:08:02 | 5:57:34 | 4:44:54 |
| F40-44 | 37 | 4:59:12 | 5:12:34 | 5:13:22 | 5:27:00 | 5:54:40 | 4:59:12 |
| F45-49 | 39 | 4:39:44 | 5:00:22 | 5:28:20 | 5:36:07 | 6:09:05 | 4:39:44 |
| F50-54 | 25 | 4:56:42 | 5:13:24 | 5:28:32 | 5:37:02 | 6:19:15 | 4:56:42 |
| F55-59 | 21 | 4:58:03 | 5:22:45 | 5:27:32 | 6:01:38 | 6:30:43 | 4:58:03 |
| F60-64 | 12 | 5:16:39 | 5:16:39 | 5:27:31 | 5:39:58 | 6:30:27 | 5:16:39 |
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.