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 | 2,685 | 4:19:36 | 4:40:11 | 4:52:21 | 5:10:27 | 5:51:41 | 4:06:34 |
| M18-24 | 65 | 4:13:54 | 4:31:13 | 4:36:24 | 5:14:07 | 5:52:55 | 4:13:54 |
| M25-29 | 242 | 4:21:16 | 4:33:58 | 4:42:07 | 5:07:09 | 5:42:12 | 4:16:54 |
| M30-34 | 312 | 4:15:49 | 4:31:59 | 4:39:57 | 4:51:49 | 5:51:52 | 4:13:17 |
| M35-39 | 400 | 4:10:57 | 4:29:42 | 4:38:51 | 5:00:13 | 5:44:49 | 4:06:34 |
| M40-44 | 379 | 4:22:34 | 4:42:25 | 4:52:51 | 5:05:58 | 5:43:34 | 4:21:27 |
| M45-49 | 450 | 4:35:42 | 4:44:56 | 4:56:21 | 5:09:16 | 5:44:22 | 4:15:50 |
| M50-54 | 374 | 4:39:46 | 4:54:39 | 5:06:37 | 5:21:11 | 6:01:59 | 4:37:44 |
| M55-59 | 281 | 4:44:15 | 4:58:16 | 5:09:05 | 5:29:57 | 6:07:45 | 4:39:38 |
| M60-64 | 122 | 4:56:39 | 5:07:08 | 5:23:20 | 5:39:41 | 6:16:48 | 4:56:39 |
| M65-69 | 44 | 5:02:18 | 5:12:41 | 5:15:23 | 5:24:27 | 6:02:16 | 5:02:18 |
| M70-74 | 14 | 5:19:47 | 5:19:47 | 5:19:47 | 5:21:18 | 6:18:30 | 5:19:47 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 1,300 | 4:47:28 | 5:05:47 | 5:19:26 | 5:36:16 | 6:16:07 | 4:27:32 |
| F18-24 | 24 | 4:56:07 | 4:56:07 | 5:27:59 | 5:31:51 | 5:56:06 | 4:56:07 |
| F25-29 | 122 | 4:39:28 | 4:54:09 | 5:08:36 | 5:23:09 | 6:01:02 | 4:39:28 |
| F30-34 | 142 | 4:27:32 | 4:52:45 | 5:05:26 | 5:25:27 | 6:13:34 | 4:27:32 |
| F35-39 | 152 | 4:32:27 | 4:50:29 | 5:06:51 | 5:29:38 | 6:00:58 | 4:32:27 |
| F40-44 | 262 | 4:51:52 | 5:01:55 | 5:15:28 | 5:29:31 | 6:16:58 | 4:49:55 |
| F45-49 | 208 | 5:08:16 | 5:23:05 | 5:24:53 | 5:36:35 | 6:09:11 | 4:50:50 |
| F50-54 | 169 | 4:44:42 | 5:18:35 | 5:22:52 | 5:41:50 | 6:24:31 | 4:44:42 |
| F55-59 | 125 | 5:13:58 | 5:31:00 | 5:39:40 | 5:53:34 | 6:33:11 | 5:13:58 |
| F60-64 | 58 | 5:28:13 | 5:36:19 | 5:39:33 | 5:57:41 | 6:32:52 | 5:28:13 |
| F65-69 | 34 | 6:06:37 | 6:06:37 | 6:07:18 | 6:34:32 | 7:00:11 | 6:06:37 |
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.