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 | 1,014 | 4:12:04 | 4:26:22 | 4:34:53 | 4:49:23 | 5:24:03 | 3:57:36 |
| M18-24 | 25 | 4:13:24 | 4:17:42 | 4:18:12 | 4:25:36 | 5:21:30 | 4:13:24 |
| M25-29 | 64 | 3:57:36 | 4:25:09 | 4:29:49 | 4:35:17 | 5:22:03 | 3:57:36 |
| M30-34 | 111 | 4:04:24 | 4:17:52 | 4:26:45 | 4:42:53 | 5:14:21 | 3:58:59 |
| M35-39 | 172 | 4:04:12 | 4:15:02 | 4:27:20 | 4:38:07 | 5:08:01 | 4:01:03 |
| M40-44 | 185 | 4:15:48 | 4:27:26 | 4:34:16 | 4:47:59 | 5:16:36 | 4:03:16 |
| M45-49 | 203 | 4:21:39 | 4:32:04 | 4:38:36 | 4:51:41 | 5:25:22 | 4:12:04 |
| M50-54 | 145 | 4:29:36 | 4:38:57 | 4:43:53 | 4:57:26 | 5:31:46 | 4:26:21 |
| M55-59 | 78 | 4:34:25 | 4:50:06 | 5:02:35 | 5:11:03 | 5:49:57 | 4:34:25 |
| M60-64 | 24 | 4:44:21 | 5:07:22 | 5:08:38 | 5:14:23 | 5:57:46 | 4:44:21 |
| M65-69 | 5 | 5:19:25 | 5:19:25 | 5:19:25 | 5:19:25 | 5:56:05 | 5:19:25 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 212 | 4:43:01 | 5:00:43 | 5:07:37 | 5:16:24 | 5:49:25 | 4:34:19 |
| F25-29 | 13 | 4:54:10 | 4:54:10 | 5:00:43 | 5:11:53 | 5:26:37 | 4:54:10 |
| F30-34 | 21 | 4:34:23 | 4:49:08 | 4:59:34 | 5:07:43 | 5:30:25 | 4:34:23 |
| F35-39 | 43 | 4:34:19 | 4:52:35 | 4:58:47 | 5:09:34 | 5:40:46 | 4:34:19 |
| F40-44 | 45 | 5:00:58 | 5:07:37 | 5:11:47 | 5:18:14 | 5:48:08 | 5:00:58 |
| F45-49 | 49 | 4:59:25 | 5:05:56 | 5:12:09 | 5:18:34 | 5:45:35 | 4:59:25 |
| F50-54 | 26 | 5:05:48 | 5:08:18 | 5:19:27 | 5:44:48 | 6:10:06 | 5:05:48 |
| F55-59 | 10 | 5:16:12 | 5:16:12 | 5:16:12 | 5:24:11 | 6:06:17 | 5:16:12 |
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.