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 | 1,418 | 4:14:12 | 4:36:38 | 4:49:01 | 5:05:55 | 5:45:28 | 3:56:08 |
| M18-24 | 291 | 4:10:34 | 4:34:45 | 4:48:52 | 5:02:10 | 5:34:57 | 3:58:15 |
| M25-29 | 299 | 4:03:58 | 4:19:16 | 4:39:20 | 4:58:55 | 5:40:27 | 3:56:08 |
| M30-34 | 241 | 4:21:46 | 4:38:21 | 4:51:42 | 5:04:51 | 5:43:03 | 4:14:18 |
| M35-39 | 160 | 4:14:12 | 4:37:34 | 4:45:49 | 5:06:03 | 5:46:39 | 4:03:56 |
| M40-44 | 110 | 4:32:54 | 4:41:47 | 4:48:37 | 5:02:00 | 5:39:17 | 4:31:02 |
| M45-49 | 87 | 4:19:21 | 4:23:45 | 4:57:32 | 5:10:50 | 5:51:59 | 4:19:21 |
| M50-54 | 85 | 4:37:00 | 4:44:10 | 4:50:32 | 5:07:39 | 5:57:36 | 4:37:00 |
| M55-59 | 78 | 4:38:23 | 4:55:19 | 5:08:37 | 5:25:18 | 6:17:05 | 4:38:23 |
| M60-64 | 40 | 4:41:35 | 4:45:50 | 4:53:13 | 5:07:16 | 5:50:22 | 4:41:35 |
| M65-69 | 19 | 5:21:45 | 5:21:45 | 5:22:59 | 5:46:11 | 6:14:07 | 5:21:45 |
| M70-74 | 6 | 5:34:38 | 5:34:38 | 5:34:38 | 6:08:55 | 6:35:48 | 5:34:38 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 602 | 4:51:19 | 5:06:09 | 5:16:39 | 5:34:31 | 6:10:27 | 4:28:32 |
| F18-24 | 113 | 4:54:19 | 5:07:03 | 5:24:45 | 5:35:50 | 6:15:32 | 4:52:05 |
| F25-29 | 135 | 5:00:41 | 5:11:30 | 5:21:52 | 5:31:03 | 6:00:09 | 4:54:51 |
| F30-34 | 92 | 4:37:32 | 4:58:50 | 5:20:11 | 5:34:31 | 6:01:17 | 4:37:32 |
| F35-39 | 51 | 4:28:32 | 4:51:19 | 5:00:35 | 5:10:01 | 5:56:02 | 4:28:32 |
| F40-44 | 55 | 4:38:17 | 4:52:58 | 5:06:09 | 5:26:56 | 6:09:18 | 4:38:17 |
| F45-49 | 40 | 4:54:59 | 4:59:50 | 5:20:59 | 5:35:21 | 6:18:48 | 4:54:59 |
| F50-54 | 61 | 4:56:50 | 5:14:29 | 5:30:38 | 5:44:19 | 6:20:59 | 4:56:50 |
| F55-59 | 28 | 4:57:02 | 5:06:27 | 5:07:40 | 5:47:57 | 6:19:08 | 4:57:02 |
| F60-64 | 16 | 5:09:16 | 5:09:16 | 5:44:35 | 5:46:19 | 6:02:29 | 5:09:16 |
| F65-69 | 7 | 6:10:00 | 6:10:00 | 6:10:00 | 6:22:54 | 7:20:02 | 6:10:00 |
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.