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 | 1,259 | 4:28:33 | 4:44:39 | 4:59:06 | 5:21:39 | 6:10:28 | 4:01:25 |
| M18-24 | 173 | 4:35:39 | 4:47:52 | 5:10:05 | 5:31:36 | 6:10:28 | 4:01:25 |
| M25-29 | 215 | 4:25:59 | 4:36:15 | 4:51:15 | 5:20:44 | 6:08:39 | 4:15:52 |
| M30-34 | 157 | 4:34:02 | 4:43:42 | 4:52:37 | 5:16:59 | 6:09:17 | 4:31:26 |
| M35-39 | 174 | 4:16:52 | 4:34:05 | 4:47:23 | 5:08:07 | 6:01:53 | 4:05:33 |
| M40-44 | 166 | 4:31:40 | 4:47:50 | 4:54:27 | 5:10:35 | 5:58:52 | 4:28:33 |
| M45-49 | 114 | 4:41:22 | 4:45:59 | 4:57:51 | 5:13:33 | 5:53:12 | 4:24:17 |
| M50-54 | 103 | 4:50:49 | 5:05:29 | 5:14:06 | 5:33:21 | 6:16:43 | 4:47:08 |
| M55-59 | 81 | 4:38:58 | 5:06:19 | 5:21:40 | 5:43:54 | 6:22:41 | 4:38:58 |
| M60-64 | 43 | 5:00:35 | 5:33:17 | 5:40:02 | 5:55:14 | 6:25:52 | 5:00:35 |
| M65-69 | 22 | 5:47:19 | 6:05:03 | 6:12:05 | 6:28:04 | 6:36:04 | 5:47:19 |
| M70-74 | 9 | 5:50:41 | 5:50:41 | 5:50:41 | 6:10:59 | 6:45:50 | 5:50:41 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 337 | 4:42:44 | 4:58:03 | 5:23:54 | 5:44:33 | 6:34:23 | 4:36:46 |
| F18-24 | 45 | 4:46:22 | 5:20:11 | 5:36:19 | 5:46:24 | 6:34:38 | 4:46:22 |
| F25-29 | 61 | 4:42:44 | 4:55:40 | 5:12:22 | 5:35:25 | 6:17:23 | 4:42:44 |
| F30-34 | 52 | 4:40:43 | 4:52:57 | 4:58:03 | 5:31:41 | 6:35:52 | 4:40:43 |
| F35-39 | 36 | 4:36:46 | 5:23:54 | 5:33:48 | 5:46:57 | 6:25:53 | 4:36:46 |
| F40-44 | 34 | 4:39:22 | 4:54:24 | 5:12:04 | 5:27:12 | 6:13:59 | 4:39:22 |
| F45-49 | 33 | 4:54:03 | 4:55:22 | 5:06:49 | 5:44:08 | 6:48:37 | 4:54:03 |
| F50-54 | 29 | 5:13:12 | 5:38:41 | 5:43:59 | 5:57:33 | 6:23:45 | 5:13:12 |
| F55-59 | 25 | 5:26:06 | 5:36:04 | 5:38:26 | 5:50:29 | 6:45:40 | 5:26:06 |
| F60-64 | 12 | 6:02:12 | 6:02:12 | 6:15:05 | 6:19:55 | 7:09:03 | 6:02:12 |
| F65-69 | 8 | 6:02:33 | 6:02:33 | 6:02:33 | 6:03:57 | 7:14:06 | 6:02:33 |
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.