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 | 1,121 | 4:21:04 | 4:34:19 | 4:47:44 | 5:02:45 | 5:41:34 | 4:07:48 |
| M18-24 | 31 | 4:13:34 | 4:29:59 | 4:34:10 | 4:57:59 | 5:47:30 | 4:13:34 |
| M25-29 | 91 | 4:21:04 | 4:26:29 | 4:33:37 | 4:48:02 | 5:33:45 | 4:21:04 |
| M30-34 | 166 | 4:09:19 | 4:23:59 | 4:39:00 | 4:51:44 | 5:30:31 | 4:07:48 |
| M35-39 | 157 | 4:19:37 | 4:32:20 | 4:47:53 | 5:03:47 | 5:35:05 | 4:12:45 |
| M40-44 | 179 | 4:20:05 | 4:37:49 | 4:46:36 | 4:59:07 | 5:34:55 | 4:19:13 |
| M45-49 | 206 | 4:24:45 | 4:43:25 | 4:55:11 | 5:09:47 | 5:43:29 | 4:22:37 |
| M50-54 | 148 | 4:31:08 | 4:44:39 | 4:55:22 | 5:08:50 | 5:48:09 | 4:25:24 |
| M55-59 | 97 | 4:33:07 | 4:51:26 | 5:02:37 | 5:21:14 | 5:53:38 | 4:33:07 |
| M60-64 | 35 | 5:04:42 | 5:08:34 | 5:17:21 | 5:30:26 | 6:10:04 | 5:04:42 |
| M65-69 | 8 | 5:35:10 | 5:35:10 | 5:35:10 | 5:55:01 | 6:25:33 | 5:35:10 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 420 | 4:50:36 | 5:11:36 | 5:23:28 | 5:40:03 | 6:24:03 | 4:45:27 |
| F18-24 | 8 | 5:13:20 | 5:13:20 | 5:13:20 | 5:13:32 | 6:13:44 | 5:13:20 |
| F25-29 | 44 | 4:57:04 | 5:19:28 | 5:27:34 | 5:40:41 | 6:21:00 | 4:57:04 |
| F30-34 | 55 | 4:46:40 | 4:58:51 | 5:20:05 | 5:24:48 | 6:14:02 | 4:46:40 |
| F35-39 | 54 | 4:45:27 | 4:49:09 | 5:22:48 | 5:39:31 | 6:29:31 | 4:45:27 |
| F40-44 | 85 | 4:50:36 | 5:11:09 | 5:20:45 | 5:30:39 | 6:12:59 | 4:50:36 |
| F45-49 | 92 | 4:59:14 | 5:15:00 | 5:32:02 | 5:49:09 | 6:30:33 | 4:59:14 |
| F50-54 | 45 | 5:08:53 | 5:19:10 | 5:28:56 | 5:38:03 | 6:34:41 | 5:08:53 |
| F55-59 | 28 | 5:22:26 | 5:26:52 | 5:35:30 | 6:09:38 | 6:39:47 | 5:22:26 |
| F60-64 | 9 | 6:09:54 | 6:09:54 | 6:09:54 | 6:19:03 | 6:46:32 | 6:09:54 |
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.