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 | 1,678 | 4:19:41 | 4:35:24 | 4:46:23 | 4:59:41 | 5:36:43 | 3:56:55 |
| MPRO | 34 | 3:56:55 | 3:57:35 | 4:02:37 | 4:03:13 | 4:19:48 | 3:56:55 |
| M18-24 | 76 | 4:26:37 | 4:28:29 | 4:41:04 | 4:51:31 | 5:09:35 | 4:26:37 |
| M25-29 | 177 | 4:21:39 | 4:32:06 | 4:38:29 | 4:49:26 | 5:19:31 | 4:19:41 |
| M30-34 | 307 | 4:24:10 | 4:36:39 | 4:45:06 | 4:58:24 | 5:34:46 | 4:21:50 |
| M35-39 | 262 | 4:26:47 | 4:39:36 | 4:44:50 | 4:59:06 | 5:31:08 | 4:21:52 |
| M40-44 | 303 | 4:29:14 | 4:40:24 | 4:53:00 | 5:04:10 | 5:44:38 | 4:22:33 |
| M45-49 | 269 | 4:33:49 | 4:48:31 | 4:56:39 | 5:13:43 | 5:46:00 | 4:29:09 |
| M50-54 | 153 | 4:46:15 | 4:53:22 | 5:02:34 | 5:17:44 | 5:47:41 | 4:39:26 |
| M55-59 | 65 | 4:56:02 | 5:04:25 | 5:08:43 | 5:20:23 | 5:49:34 | 4:56:02 |
| M60-64 | 15 | 5:19:11 | 5:19:11 | 5:27:05 | 5:44:02 | 6:00:07 | 5:19:11 |
| M65-69 | 8 | 5:41:47 | 5:41:47 | 5:41:47 | 5:51:12 | 5:54:55 | 5:41:47 |
| M70-74 | 8 | 6:14:58 | 6:14:58 | 6:14:58 | 6:29:49 | 6:31:44 | 6:14:58 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 264 | 4:36:27 | 4:55:36 | 5:10:22 | 5:24:59 | 5:59:16 | 4:31:34 |
| FPRO | 16 | 4:31:34 | 4:31:34 | 4:32:43 | 4:39:28 | 4:47:16 | 4:31:34 |
| F18-24 | 12 | 5:09:25 | 5:09:25 | 5:09:52 | 5:21:13 | 5:26:22 | 5:09:25 |
| F25-29 | 31 | 5:00:37 | 5:02:57 | 5:09:08 | 5:14:40 | 5:50:04 | 5:00:37 |
| F30-34 | 44 | 4:52:02 | 5:10:22 | 5:20:11 | 5:28:04 | 5:57:28 | 4:52:02 |
| F35-39 | 49 | 5:03:31 | 5:11:03 | 5:16:32 | 5:35:09 | 5:59:16 | 5:03:31 |
| F40-44 | 43 | 5:05:13 | 5:10:57 | 5:15:46 | 5:28:30 | 6:17:12 | 5:05:13 |
| F45-49 | 35 | 5:05:33 | 5:15:19 | 5:30:49 | 5:34:04 | 6:11:55 | 5:05:33 |
| F50-54 | 20 | 5:29:50 | 5:29:50 | 5:31:10 | 5:53:59 | 6:11:20 | 5:29:50 |
| F55-59 | 8 | 5:45:05 | 5:45:05 | 5:45:05 | 6:01:44 | 6:25:19 | 5:45:05 |
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.