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 | 324 | 4:10:56 | 4:38:42 | 4:53:25 | 5:04:29 | 5:49:35 | 4:07:00 |
| MPRO | 16 | 4:07:00 | 4:07:00 | 4:08:29 | 4:10:56 | 4:20:50 | 4:07:00 |
| M18-24 | 8 | 4:37:05 | 4:37:05 | 4:37:05 | 4:42:10 | 5:18:16 | 4:37:05 |
| M25-29 | 16 | 4:54:45 | 4:54:45 | 4:57:59 | 5:04:04 | 5:27:39 | 4:54:45 |
| M30-34 | 44 | 4:45:09 | 4:52:18 | 4:55:53 | 5:01:18 | 5:47:58 | 4:45:09 |
| M35-39 | 54 | 4:31:58 | 4:38:00 | 4:42:13 | 4:56:53 | 5:42:16 | 4:31:58 |
| M40-44 | 48 | 4:34:36 | 4:45:49 | 4:48:54 | 5:07:25 | 5:30:41 | 4:34:36 |
| M45-49 | 44 | 4:40:53 | 4:52:35 | 4:59:42 | 5:12:05 | 6:03:29 | 4:40:53 |
| M50-54 | 46 | 4:57:02 | 5:05:04 | 5:10:21 | 5:24:36 | 6:12:48 | 4:57:02 |
| M55-59 | 23 | 5:11:00 | 5:16:11 | 5:18:09 | 5:32:12 | 6:01:35 | 5:11:00 |
| M60-64 | 15 | 5:17:54 | 5:17:54 | 5:33:00 | 5:34:40 | 6:33:57 | 5:17:54 |
| M65-69 | 5 | 6:34:30 | 6:34:30 | 6:34:30 | 6:34:30 | 6:57:37 | 6:34:30 |
| M70-74 | 5 | 6:18:40 | 6:18:40 | 6:18:40 | 6:18:40 | 7:08:33 | 6:18:40 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 124 | 4:34:40 | 4:55:02 | 5:13:15 | 5:26:24 | 6:02:35 | 4:30:13 |
| FPRO | 12 | 4:30:13 | 4:30:13 | 4:34:40 | 4:37:15 | 4:53:21 | 4:30:13 |
| F25-29 | 6 | 5:34:37 | 5:34:37 | 5:34:37 | 5:36:06 | 5:39:32 | 5:34:37 |
| F30-34 | 20 | 5:11:46 | 5:11:46 | 5:13:50 | 5:19:59 | 5:52:38 | 5:11:46 |
| F35-39 | 17 | 5:11:32 | 5:11:32 | 5:17:31 | 5:37:48 | 6:21:31 | 5:11:32 |
| F40-44 | 15 | 5:17:39 | 5:17:39 | 5:18:54 | 5:21:54 | 5:45:16 | 5:17:39 |
| F45-49 | 24 | 5:16:43 | 5:26:24 | 5:29:01 | 5:41:26 | 6:04:24 | 5:16:43 |
| F50-54 | 15 | 5:27:02 | 5:27:02 | 5:28:18 | 5:32:47 | 6:34:54 | 5:27:02 |
| F55-59 | 7 | 5:40:01 | 5:40:01 | 5:40:01 | 5:52:58 | 6:29:38 | 5:40:01 |
| F60-64 | 5 | 6:29:40 | 6:29:40 | 6:29:40 | 6:29:40 | 7:06:47 | 6:29:40 |
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.