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 | 1,371 | 4:28:48 | 4:50:41 | 5:02:18 | 5:22:29 | 6:07:12 | 4:10:51 |
| M18-24 | 55 | 4:25:52 | 4:31:18 | 4:44:40 | 5:22:45 | 5:49:07 | 4:25:52 |
| M25-29 | 165 | 4:17:07 | 4:51:21 | 5:09:55 | 5:26:27 | 5:59:16 | 4:15:24 |
| M30-34 | 168 | 4:15:24 | 4:40:40 | 4:52:43 | 5:12:10 | 5:55:04 | 4:11:24 |
| M35-39 | 195 | 4:28:21 | 4:47:08 | 5:01:08 | 5:16:17 | 5:59:07 | 4:10:51 |
| M40-44 | 245 | 4:26:17 | 4:45:42 | 4:54:42 | 5:11:14 | 5:58:03 | 4:24:42 |
| M45-49 | 200 | 4:30:25 | 4:56:17 | 5:07:07 | 5:22:39 | 5:59:17 | 4:18:42 |
| M50-54 | 176 | 4:32:42 | 4:57:30 | 5:06:28 | 5:23:14 | 6:13:44 | 4:31:30 |
| M55-59 | 97 | 5:00:34 | 5:22:05 | 5:36:00 | 5:57:24 | 6:40:28 | 5:00:34 |
| M60-64 | 49 | 5:02:28 | 5:30:43 | 5:35:45 | 5:59:59 | 6:44:17 | 5:02:28 |
| M65-69 | 15 | 5:56:53 | 5:56:53 | 5:59:32 | 6:03:33 | 6:37:41 | 5:56:53 |
| M70-74 | 5 | 7:49:08 | 7:49:08 | 7:49:08 | 7:49:08 | 8:01:49 | 7:49:08 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 564 | 4:53:51 | 5:15:36 | 5:29:22 | 5:47:41 | 6:30:40 | 4:37:40 |
| F18-24 | 13 | 4:58:09 | 4:58:09 | 5:17:02 | 5:39:01 | 6:15:16 | 4:58:09 |
| F25-29 | 58 | 4:43:41 | 5:15:31 | 5:21:49 | 5:32:54 | 6:06:41 | 4:43:41 |
| F30-34 | 79 | 4:46:22 | 5:12:20 | 5:27:30 | 5:45:02 | 6:33:23 | 4:46:22 |
| F35-39 | 95 | 4:38:20 | 5:09:34 | 5:26:07 | 5:45:46 | 6:24:07 | 4:38:20 |
| F40-44 | 105 | 4:45:03 | 5:10:00 | 5:18:59 | 5:44:36 | 6:31:03 | 4:37:40 |
| F45-49 | 94 | 5:00:54 | 5:29:15 | 5:39:30 | 6:01:33 | 6:50:17 | 5:00:54 |
| F50-54 | 65 | 5:01:09 | 5:30:21 | 5:48:01 | 5:57:08 | 6:39:27 | 5:01:09 |
| F55-59 | 45 | 5:15:36 | 5:30:30 | 5:41:00 | 5:50:28 | 6:28:14 | 5:15:36 |
| F60-64 | 7 | 5:39:40 | 5:39:40 | 5:39:40 | 6:11:47 | 6:25:27 | 5:39:40 |
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.