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 | 825 | 4:05:08 | 4:29:41 | 4:45:48 | 5:04:49 | 5:46:13 | 3:52:41 |
| MPRO | 20 | 3:52:41 | 3:52:41 | 3:54:48 | 3:57:50 | 4:06:39 | 3:52:41 |
| M18-24 | 19 | 4:15:37 | 4:15:37 | 4:24:57 | 4:57:38 | 5:40:00 | 4:15:37 |
| M25-29 | 80 | 4:16:39 | 4:21:20 | 4:40:22 | 4:54:53 | 5:42:26 | 4:16:39 |
| M30-34 | 133 | 4:19:23 | 4:33:35 | 4:44:24 | 5:03:07 | 5:36:04 | 4:18:33 |
| M35-39 | 176 | 4:28:08 | 4:40:51 | 4:48:24 | 5:03:56 | 5:36:22 | 4:25:16 |
| M40-44 | 167 | 4:17:10 | 4:35:00 | 4:47:31 | 5:09:45 | 5:49:14 | 4:12:14 |
| M45-49 | 102 | 4:31:54 | 4:45:04 | 4:53:37 | 5:15:21 | 5:50:28 | 4:18:28 |
| M50-54 | 74 | 4:44:01 | 4:52:49 | 5:08:01 | 5:23:37 | 5:59:32 | 4:44:01 |
| M55-59 | 40 | 5:00:17 | 5:04:35 | 5:14:06 | 5:25:28 | 6:07:32 | 5:00:17 |
| M60-64 | 10 | 5:02:23 | 5:02:23 | 5:02:23 | 6:01:45 | 6:41:05 | 5:02:23 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 360 | 4:26:06 | 4:59:33 | 5:15:39 | 5:36:48 | 6:20:03 | 4:18:28 |
| FPRO | 13 | 4:18:28 | 4:18:28 | 4:20:41 | 4:22:14 | 4:31:51 | 4:18:28 |
| F18-24 | 10 | 5:11:40 | 5:11:40 | 5:11:40 | 5:59:33 | 6:14:31 | 5:11:40 |
| F25-29 | 33 | 4:45:04 | 4:54:08 | 5:34:52 | 5:48:29 | 6:22:36 | 4:45:04 |
| F30-34 | 75 | 4:45:37 | 5:00:00 | 5:14:14 | 5:28:36 | 6:19:37 | 4:45:37 |
| F35-39 | 70 | 4:58:09 | 5:04:35 | 5:12:15 | 5:24:43 | 6:14:09 | 4:58:09 |
| F40-44 | 67 | 5:11:53 | 5:20:56 | 5:25:58 | 5:50:19 | 6:28:06 | 5:11:53 |
| F45-49 | 51 | 5:10:26 | 5:20:37 | 5:31:24 | 5:39:29 | 6:13:29 | 5:10:26 |
| F50-54 | 27 | 5:12:38 | 5:23:13 | 5:36:53 | 5:45:36 | 6:25:46 | 5:12:38 |
| F55-59 | 10 | 5:55:16 | 5:55:16 | 5:55:16 | 5:59:09 | 6:57:46 | 5:55:16 |
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.