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 | 1,016 | 4:30:11 | 4:49:44 | 5:03:48 | 5:21:54 | 5:59:47 | 4:02:56 |
| M18-24 | 151 | 4:15:36 | 4:45:07 | 5:02:26 | 5:19:44 | 5:47:11 | 4:05:48 |
| M25-29 | 181 | 4:11:30 | 4:54:49 | 5:08:59 | 5:22:27 | 5:50:40 | 4:02:56 |
| M30-34 | 157 | 4:31:40 | 4:53:31 | 5:06:58 | 5:24:04 | 5:56:35 | 4:31:11 |
| M35-39 | 146 | 4:23:16 | 4:41:35 | 4:50:33 | 5:06:26 | 5:45:39 | 4:07:43 |
| M40-44 | 114 | 4:27:57 | 4:39:24 | 4:52:53 | 5:10:58 | 5:57:37 | 4:22:08 |
| M45-49 | 75 | 4:45:37 | 5:03:05 | 5:08:37 | 5:24:41 | 6:12:47 | 4:45:37 |
| M50-54 | 80 | 4:35:10 | 4:39:01 | 5:00:59 | 5:24:03 | 6:02:45 | 4:35:10 |
| M55-59 | 50 | 4:56:48 | 5:15:18 | 5:28:09 | 5:42:12 | 6:18:01 | 4:56:48 |
| M60-64 | 36 | 5:14:54 | 5:18:43 | 5:36:02 | 5:59:14 | 6:42:47 | 5:14:54 |
| M65-69 | 20 | 5:39:05 | 5:39:05 | 6:11:07 | 6:33:33 | 7:15:18 | 5:39:05 |
| M70-74 | 5 | 6:11:51 | 6:11:51 | 6:11:51 | 6:11:51 | 7:07:13 | 6:11:51 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 509 | 4:49:01 | 5:08:22 | 5:24:26 | 5:44:29 | 6:29:47 | 4:34:48 |
| F18-24 | 45 | 4:49:01 | 5:18:01 | 5:32:00 | 5:39:20 | 6:00:56 | 4:49:01 |
| F25-29 | 97 | 4:47:36 | 5:04:17 | 5:20:33 | 5:40:26 | 6:24:21 | 4:47:36 |
| F30-34 | 63 | 4:45:35 | 4:57:39 | 5:28:50 | 5:50:16 | 6:34:13 | 4:45:35 |
| F35-39 | 67 | 4:34:48 | 5:05:04 | 5:15:19 | 5:36:19 | 6:37:31 | 4:34:48 |
| F40-44 | 65 | 4:50:56 | 5:04:19 | 5:27:00 | 5:36:14 | 6:30:45 | 4:50:56 |
| F45-49 | 56 | 4:59:57 | 5:18:59 | 5:25:28 | 5:53:07 | 6:23:00 | 4:59:57 |
| F50-54 | 40 | 5:00:02 | 5:14:29 | 5:23:57 | 5:43:00 | 6:27:36 | 5:00:02 |
| F55-59 | 48 | 4:56:24 | 5:25:16 | 5:35:52 | 6:10:01 | 6:45:42 | 4:56:24 |
| F60-64 | 13 | 5:27:34 | 5:27:34 | 5:58:47 | 5:59:21 | 6:39:32 | 5:27:34 |
| F65-69 | 11 | 5:30:32 | 5:30:32 | 6:05:15 | 6:10:33 | 6:40:26 | 5:30:32 |
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.