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 | 715 | 3:49:57 | 4:08:43 | 4:18:35 | 4:32:49 | 5:01:24 | 3:27:01 |
| MPRO | 15 | 3:27:01 | 3:27:01 | 3:38:30 | 3:39:04 | 3:49:57 | 3:27:01 |
| M18-24 | 18 | 4:13:28 | 4:13:28 | 4:26:28 | 4:35:23 | 5:04:26 | 4:13:28 |
| M25-29 | 60 | 3:52:34 | 3:57:50 | 4:14:52 | 4:30:15 | 4:47:17 | 3:52:34 |
| M30-34 | 118 | 3:56:32 | 4:02:49 | 4:14:13 | 4:25:49 | 4:46:20 | 3:55:38 |
| M35-39 | 110 | 4:07:21 | 4:12:52 | 4:17:31 | 4:29:13 | 4:55:31 | 3:53:51 |
| M40-44 | 122 | 4:06:34 | 4:14:47 | 4:26:13 | 4:37:22 | 5:01:45 | 4:06:08 |
| M45-49 | 125 | 4:01:26 | 4:10:42 | 4:25:17 | 4:36:10 | 5:06:13 | 3:58:19 |
| M50-54 | 75 | 4:13:10 | 4:19:22 | 4:35:06 | 4:44:44 | 5:11:49 | 4:13:10 |
| M55-59 | 39 | 4:19:25 | 4:28:29 | 4:29:54 | 4:37:16 | 5:06:23 | 4:19:25 |
| M60-64 | 20 | 4:28:25 | 4:28:25 | 4:33:23 | 4:46:29 | 5:12:07 | 4:28:25 |
| M65-69 | 7 | 4:55:03 | 4:55:03 | 4:55:03 | 5:00:45 | 5:19:43 | 4:55:03 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 285 | 4:19:22 | 4:35:16 | 4:44:29 | 5:00:05 | 5:35:51 | 4:10:55 |
| FPRO | 6 | 4:10:55 | 4:10:55 | 4:10:55 | 4:17:40 | 4:22:03 | 4:10:55 |
| F18-24 | 16 | 4:36:19 | 4:36:19 | 4:57:27 | 5:02:58 | 5:21:43 | 4:36:19 |
| F25-29 | 37 | 4:19:22 | 4:20:57 | 4:43:40 | 4:49:53 | 5:27:01 | 4:19:22 |
| F30-34 | 49 | 4:31:02 | 4:44:42 | 4:46:39 | 4:57:43 | 5:27:04 | 4:31:02 |
| F35-39 | 37 | 4:31:41 | 4:32:51 | 4:37:46 | 4:58:12 | 5:26:33 | 4:31:41 |
| F40-44 | 55 | 4:21:32 | 4:35:28 | 4:39:59 | 5:02:25 | 5:37:34 | 4:21:32 |
| F45-49 | 35 | 4:43:46 | 4:45:38 | 4:52:05 | 5:02:41 | 5:43:20 | 4:43:46 |
| F50-54 | 31 | 4:34:21 | 5:09:06 | 5:12:42 | 5:23:13 | 5:44:25 | 4:34:21 |
| F55-59 | 11 | 4:41:54 | 4:41:54 | 5:14:38 | 5:24:54 | 5:53:54 | 4:41:54 |
| F60-64 | 6 | 5:16:01 | 5:16:01 | 5:16:01 | 5:59:31 | 6:02:08 | 5:16:01 |
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.