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 | 1,037 | 4:09:29 | 4:28:40 | 4:38:32 | 4:48:48 | 5:19:47 | 3:49:52 |
| M18-24 | 79 | 4:06:57 | 4:19:36 | 4:35:06 | 4:50:09 | 5:18:43 | 4:06:57 |
| M25-29 | 153 | 4:08:39 | 4:17:03 | 4:28:40 | 4:41:35 | 5:14:00 | 4:03:11 |
| M30-34 | 145 | 4:07:43 | 4:20:10 | 4:35:48 | 4:43:09 | 5:18:14 | 4:07:19 |
| M35-39 | 103 | 4:08:06 | 4:24:25 | 4:27:12 | 4:40:50 | 5:11:44 | 3:49:52 |
| M40-44 | 133 | 4:10:20 | 4:28:44 | 4:42:39 | 4:53:12 | 5:23:27 | 4:08:26 |
| M45-49 | 137 | 4:19:05 | 4:34:45 | 4:39:45 | 4:51:21 | 5:18:09 | 4:18:52 |
| M50-54 | 132 | 4:27:21 | 4:36:08 | 4:43:03 | 4:51:07 | 5:20:52 | 4:26:04 |
| M55-59 | 106 | 4:28:56 | 4:39:46 | 4:48:16 | 5:05:24 | 5:31:28 | 4:28:43 |
| M60-64 | 37 | 4:39:30 | 4:51:51 | 5:00:07 | 5:06:29 | 6:04:32 | 4:39:30 |
| M65-69 | 6 | 5:05:32 | 5:05:32 | 5:05:32 | 5:07:46 | 5:21:59 | 5:05:32 |
| M70-74 | 5 | 5:44:19 | 5:44:19 | 5:44:19 | 5:44:19 | 6:11:59 | 5:44:19 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 309 | 4:10:51 | 4:43:13 | 4:59:53 | 5:12:36 | 5:48:09 | 4:05:22 |
| FPRO | 9 | 4:05:22 | 4:05:22 | 4:05:22 | 4:05:47 | 4:13:11 | 4:05:22 |
| F18-24 | 22 | 4:33:00 | 4:36:41 | 4:40:29 | 5:01:29 | 5:32:39 | 4:33:00 |
| F25-29 | 46 | 4:41:44 | 4:58:39 | 4:59:52 | 5:10:46 | 5:45:54 | 4:41:44 |
| F30-34 | 42 | 5:00:18 | 5:02:48 | 5:03:46 | 5:17:23 | 5:50:24 | 5:00:18 |
| F35-39 | 30 | 4:25:31 | 4:35:49 | 4:42:55 | 4:49:53 | 5:27:24 | 4:25:31 |
| F40-44 | 44 | 4:46:05 | 4:53:54 | 5:01:25 | 5:08:53 | 5:44:26 | 4:46:05 |
| F45-49 | 44 | 4:52:12 | 5:08:15 | 5:14:55 | 5:31:25 | 5:56:08 | 4:52:12 |
| F50-54 | 41 | 4:54:49 | 5:00:25 | 5:18:03 | 5:29:05 | 5:49:35 | 4:54:49 |
| F55-59 | 21 | 5:09:06 | 5:22:34 | 5:24:19 | 5:30:53 | 6:12:40 | 5:09:06 |
| F60-64 | 8 | 5:48:16 | 5:48:16 | 5:48:16 | 5:50:31 | 6:23:37 | 5:48:16 |
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.