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 | 2,595 | 4:26:50 | 4:48:48 | 5:01:47 | 5:18:58 | 5:52:30 | 4:02:44 |
| M18-24 | 104 | 4:21:09 | 4:32:31 | 4:47:11 | 5:06:48 | 5:36:00 | 4:21:09 |
| M25-29 | 276 | 4:17:59 | 4:38:58 | 4:49:36 | 5:07:19 | 5:44:00 | 4:08:28 |
| M30-34 | 362 | 4:26:50 | 4:49:47 | 4:59:02 | 5:19:07 | 5:50:31 | 4:26:48 |
| M35-39 | 381 | 4:22:03 | 4:38:15 | 4:57:42 | 5:16:03 | 5:47:47 | 4:12:04 |
| M40-44 | 396 | 4:11:55 | 4:50:25 | 5:01:38 | 5:14:29 | 5:44:40 | 4:02:44 |
| M45-49 | 326 | 4:32:28 | 4:49:52 | 5:06:47 | 5:17:50 | 5:48:48 | 4:27:34 |
| M50-54 | 315 | 4:39:12 | 4:56:48 | 5:08:59 | 5:30:02 | 5:55:27 | 4:38:39 |
| M55-59 | 252 | 4:52:40 | 5:07:44 | 5:21:34 | 5:36:24 | 6:08:00 | 4:38:59 |
| M60-64 | 122 | 4:58:27 | 5:34:21 | 5:35:16 | 5:44:35 | 6:16:26 | 4:58:27 |
| M65-69 | 48 | 5:16:49 | 5:25:30 | 5:51:58 | 6:12:29 | 7:05:04 | 5:16:49 |
| M70-74 | 9 | 5:56:16 | 5:56:16 | 5:56:16 | 5:56:16 | 7:30:19 | 5:56:16 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 1,084 | 4:57:41 | 5:14:53 | 5:29:12 | 5:46:51 | 6:29:16 | 4:50:25 |
| F18-24 | 40 | 5:21:08 | 5:21:08 | 5:29:16 | 5:41:05 | 6:10:50 | 5:21:08 |
| F25-29 | 130 | 4:50:25 | 5:05:28 | 5:20:34 | 5:39:19 | 6:08:52 | 4:50:25 |
| F30-34 | 128 | 4:52:24 | 5:06:21 | 5:16:04 | 5:25:41 | 6:05:54 | 4:52:24 |
| F35-39 | 120 | 4:54:00 | 5:09:50 | 5:18:48 | 5:41:58 | 6:18:48 | 4:54:00 |
| F40-44 | 198 | 5:03:42 | 5:10:59 | 5:27:00 | 5:46:22 | 6:25:42 | 5:03:42 |
| F45-49 | 170 | 5:07:10 | 5:26:21 | 5:31:26 | 5:43:01 | 6:29:16 | 5:07:10 |
| F50-54 | 130 | 5:00:52 | 5:20:53 | 5:48:17 | 6:07:18 | 6:37:23 | 5:00:52 |
| F55-59 | 98 | 5:28:07 | 5:40:48 | 6:01:41 | 6:22:47 | 6:56:49 | 5:28:07 |
| F60-64 | 48 | 5:46:21 | 5:54:05 | 6:09:38 | 6:37:23 | 7:00:57 | 5:46:21 |
| F65-69 | 14 | 6:13:12 | 6:13:12 | 6:13:12 | 6:55:33 | 7:17:16 | 6:13:12 |
| F70-74 | 6 | 7:10:46 | 7:10:46 | 7:10:46 | 7:10:46 | 7:39:40 | 7:10:46 |
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.