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 | 1,464 | 4:35:49 | 4:53:50 | 5:01:54 | 5:12:50 | 5:41:07 | 4:16:39 |
| M18-24 | 46 | 4:30:58 | 4:39:35 | 4:48:38 | 5:02:01 | 5:17:19 | 4:30:58 |
| M25-29 | 131 | 4:32:22 | 4:44:54 | 4:55:33 | 5:07:34 | 5:37:46 | 4:16:39 |
| M30-34 | 241 | 4:32:14 | 4:49:46 | 4:56:26 | 5:06:37 | 5:33:16 | 4:29:16 |
| M35-39 | 305 | 4:34:50 | 4:49:28 | 4:55:36 | 5:07:36 | 5:32:44 | 4:30:11 |
| M40-44 | 250 | 4:49:53 | 4:57:32 | 5:03:41 | 5:13:19 | 5:38:38 | 4:27:28 |
| M45-49 | 249 | 4:47:28 | 5:01:55 | 5:09:05 | 5:19:01 | 5:49:22 | 4:37:56 |
| M50-54 | 160 | 4:41:56 | 5:02:10 | 5:17:52 | 5:24:03 | 5:51:51 | 4:35:27 |
| M55-59 | 57 | 4:57:53 | 5:04:30 | 5:13:25 | 5:31:33 | 6:06:10 | 4:57:53 |
| M60-64 | 17 | 5:31:21 | 5:31:21 | 5:53:56 | 6:05:04 | 6:33:54 | 5:31:21 |
| M65-69 | 7 | 5:22:58 | 5:22:58 | 5:22:58 | 6:15:42 | 6:28:01 | 5:22:58 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 331 | 5:06:48 | 5:25:40 | 5:34:25 | 5:47:47 | 6:17:04 | 4:53:36 |
| F18-24 | 14 | 5:37:55 | 5:37:55 | 5:45:41 | 5:46:56 | 6:09:07 | 5:37:55 |
| F25-29 | 39 | 5:06:48 | 5:19:37 | 5:21:50 | 5:30:14 | 5:56:00 | 5:06:48 |
| F30-34 | 56 | 5:12:11 | 5:17:47 | 5:28:14 | 5:47:22 | 6:22:45 | 5:12:11 |
| F35-39 | 72 | 5:02:27 | 5:17:43 | 5:34:57 | 5:46:47 | 6:14:17 | 5:02:27 |
| F40-44 | 65 | 4:53:36 | 5:26:27 | 5:29:39 | 5:47:47 | 6:17:24 | 4:53:36 |
| F45-49 | 42 | 5:32:56 | 5:34:25 | 5:40:37 | 5:57:27 | 6:19:25 | 5:32:56 |
| F50-54 | 28 | 5:35:16 | 5:45:56 | 5:50:17 | 6:00:30 | 6:14:07 | 5:35:16 |
| F55-59 | 12 | 5:37:28 | 5:37:28 | 6:28:37 | 6:37:29 | 7:02:17 | 5:37:28 |
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.