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 | 1,519 | 4:15:56 | 4:36:03 | 4:49:14 | 5:08:42 | 5:56:48 | 4:01:29 |
| M18-24 | 79 | 4:09:32 | 4:22:48 | 4:29:01 | 4:52:45 | 5:50:56 | 4:09:32 |
| M25-29 | 156 | 4:09:05 | 4:22:10 | 4:44:45 | 5:11:20 | 5:54:12 | 4:03:43 |
| M30-34 | 223 | 4:15:56 | 4:33:48 | 4:47:08 | 5:06:27 | 5:55:04 | 4:04:40 |
| M35-39 | 246 | 4:16:21 | 4:27:48 | 4:41:15 | 5:02:21 | 5:48:04 | 4:01:29 |
| M40-44 | 244 | 4:27:50 | 4:36:08 | 4:45:44 | 5:05:29 | 5:50:43 | 4:16:31 |
| M45-49 | 178 | 4:13:59 | 4:38:42 | 4:53:11 | 5:06:16 | 5:50:09 | 4:09:25 |
| M50-54 | 182 | 4:32:15 | 4:46:21 | 4:54:18 | 5:13:02 | 5:56:34 | 4:28:36 |
| M55-59 | 115 | 4:36:03 | 4:57:43 | 5:05:42 | 5:24:35 | 6:15:28 | 4:30:12 |
| M60-64 | 54 | 4:50:59 | 5:08:50 | 5:25:24 | 5:56:48 | 6:17:54 | 4:50:59 |
| M65-69 | 32 | 5:01:51 | 5:07:32 | 5:37:48 | 5:45:35 | 6:35:19 | 5:01:51 |
| M70-74 | 9 | 6:06:28 | 6:06:28 | 6:06:28 | 6:14:41 | 7:18:45 | 6:06:28 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 530 | 4:40:22 | 4:58:01 | 5:15:58 | 5:38:43 | 6:23:53 | 4:25:40 |
| F18-24 | 17 | 5:16:04 | 5:16:04 | 5:48:40 | 6:10:33 | 6:31:50 | 5:16:04 |
| F25-29 | 54 | 4:31:47 | 4:49:22 | 5:16:56 | 5:40:35 | 6:13:46 | 4:31:47 |
| F30-34 | 87 | 4:25:40 | 4:52:45 | 4:58:37 | 5:30:53 | 6:06:54 | 4:25:40 |
| F35-39 | 84 | 4:32:07 | 4:52:46 | 5:04:11 | 5:31:46 | 6:35:34 | 4:32:07 |
| F40-44 | 77 | 4:40:22 | 4:54:41 | 5:13:38 | 5:28:15 | 6:11:07 | 4:40:22 |
| F45-49 | 79 | 4:38:52 | 5:00:44 | 5:17:06 | 5:39:08 | 6:20:29 | 4:38:52 |
| F50-54 | 62 | 4:41:40 | 5:20:10 | 5:33:30 | 5:51:31 | 6:28:13 | 4:41:40 |
| F55-59 | 49 | 5:01:46 | 5:22:12 | 5:29:59 | 5:50:46 | 6:25:58 | 5:01:46 |
| F60-64 | 14 | 5:37:18 | 5:37:18 | 6:05:00 | 6:06:26 | 6:55:05 | 5:37:18 |
| F65-69 | 5 | 6:11:04 | 6:11:04 | 6:11:04 | 6:11:04 | 7:09:03 | 6:11:04 |
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.