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 | 864 | 4:18:34 | 4:37:52 | 4:56:21 | 5:19:17 | 6:05:53 | 3:51:31 |
| M18-24 | 37 | 4:23:10 | 4:23:43 | 4:53:04 | 5:22:36 | 6:04:30 | 4:23:10 |
| M25-29 | 82 | 3:51:31 | 4:30:31 | 4:36:15 | 5:06:14 | 5:47:56 | 3:51:31 |
| M30-34 | 124 | 4:05:12 | 4:30:07 | 4:37:52 | 5:01:50 | 5:48:55 | 4:01:35 |
| M35-39 | 126 | 4:18:19 | 4:35:29 | 4:52:40 | 5:11:15 | 5:56:18 | 4:16:34 |
| M40-44 | 129 | 4:18:34 | 4:46:22 | 4:58:58 | 5:16:09 | 5:56:20 | 4:15:15 |
| M45-49 | 144 | 4:36:13 | 4:44:40 | 4:56:39 | 5:28:36 | 6:14:02 | 4:23:25 |
| M50-54 | 117 | 4:37:03 | 4:54:31 | 5:03:34 | 5:40:09 | 6:26:16 | 4:30:40 |
| M55-59 | 69 | 4:50:12 | 5:16:55 | 5:29:14 | 5:52:35 | 6:14:37 | 4:50:12 |
| M60-64 | 23 | 5:24:14 | 5:38:36 | 5:39:24 | 5:53:25 | 6:43:55 | 5:24:14 |
| M65-69 | 11 | 5:51:09 | 5:51:09 | 6:09:01 | 6:27:52 | 6:51:39 | 5:51:09 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 551 | 4:43:38 | 5:06:25 | 5:28:58 | 5:53:44 | 6:41:27 | 4:27:31 |
| F18-24 | 25 | 5:07:19 | 5:10:43 | 5:19:20 | 5:59:32 | 6:48:07 | 5:07:19 |
| F25-29 | 49 | 4:46:40 | 4:55:44 | 5:05:38 | 5:36:06 | 6:30:21 | 4:46:40 |
| F30-34 | 77 | 4:27:31 | 4:39:40 | 5:19:25 | 5:40:32 | 6:34:41 | 4:27:31 |
| F35-39 | 92 | 4:36:27 | 5:10:59 | 5:39:09 | 5:51:48 | 6:27:41 | 4:36:27 |
| F40-44 | 98 | 4:43:38 | 5:03:52 | 5:09:22 | 5:45:42 | 6:44:57 | 4:43:38 |
| F45-49 | 92 | 4:48:13 | 5:17:00 | 5:45:44 | 6:05:11 | 6:43:33 | 4:48:13 |
| F50-54 | 65 | 4:57:58 | 5:15:26 | 5:29:26 | 5:55:55 | 6:35:11 | 4:57:58 |
| F55-59 | 33 | 5:18:33 | 5:30:33 | 5:48:36 | 6:06:47 | 6:59:37 | 5:18:33 |
| F60-64 | 17 | 5:11:32 | 5:11:32 | 5:14:18 | 5:43:59 | 6:52:46 | 5:11:32 |
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.