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 | 668 | 4:32:00 | 5:02:59 | 5:22:47 | 5:50:33 | 6:48:47 | 4:18:47 |
| M18-24 | 42 | 4:20:38 | 4:50:31 | 5:11:32 | 6:01:09 | 6:42:15 | 4:20:38 |
| M25-29 | 79 | 4:18:47 | 4:53:34 | 5:23:16 | 5:50:29 | 6:52:45 | 4:18:47 |
| M30-34 | 88 | 4:32:00 | 4:45:17 | 5:00:40 | 5:32:51 | 6:34:52 | 4:32:00 |
| M35-39 | 64 | 4:32:09 | 5:07:25 | 5:11:53 | 5:18:17 | 6:56:37 | 4:32:09 |
| M40-44 | 82 | 4:36:19 | 5:11:09 | 5:26:00 | 5:53:53 | 6:50:27 | 4:36:19 |
| M45-49 | 78 | 4:24:29 | 5:01:12 | 5:14:32 | 5:36:12 | 6:07:43 | 4:24:29 |
| M50-54 | 76 | 4:46:13 | 5:16:26 | 5:37:14 | 6:02:56 | 6:59:36 | 4:46:13 |
| M55-59 | 68 | 4:57:28 | 5:17:36 | 5:34:11 | 6:05:29 | 6:53:50 | 4:57:28 |
| M60-64 | 49 | 5:26:43 | 5:38:29 | 5:58:45 | 6:14:33 | 6:52:45 | 5:26:43 |
| M65-69 | 26 | 5:03:17 | 5:56:52 | 6:09:06 | 6:31:23 | 7:31:10 | 5:03:17 |
| M70-74 | 12 | 6:06:50 | 6:06:50 | 6:15:36 | 6:52:08 | 7:52:39 | 6:06:50 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 259 | 5:02:06 | 5:30:29 | 5:52:36 | 6:14:23 | 7:19:03 | 4:41:13 |
| F18-24 | 13 | 5:22:35 | 5:22:35 | 5:30:29 | 6:04:02 | 7:13:47 | 5:22:35 |
| F25-29 | 30 | 5:02:06 | 5:41:54 | 5:56:32 | 6:22:39 | 7:02:01 | 5:02:06 |
| F30-34 | 38 | 5:23:55 | 6:00:28 | 6:15:56 | 6:29:35 | 7:20:15 | 5:23:55 |
| F35-39 | 30 | 4:43:48 | 5:20:28 | 5:34:52 | 5:55:27 | 6:39:05 | 4:43:48 |
| F40-44 | 27 | 4:41:13 | 5:16:23 | 5:19:33 | 5:51:15 | 6:58:00 | 4:41:13 |
| F45-49 | 23 | 5:17:57 | 5:19:59 | 5:32:41 | 5:53:12 | 7:03:48 | 5:17:57 |
| F50-54 | 34 | 5:29:46 | 5:44:13 | 6:05:05 | 6:19:53 | 7:17:16 | 5:29:46 |
| F55-59 | 31 | 5:35:47 | 5:37:34 | 5:57:13 | 6:07:47 | 7:14:12 | 5:35:47 |
| F60-64 | 19 | 5:50:22 | 5:50:22 | 6:44:56 | 6:53:28 | 7:31:40 | 5:50:22 |
| F65-69 | 11 | 6:12:02 | 6:12:02 | 6:50:29 | 7:08:03 | 7:54:07 | 6:12:02 |
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.