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 | 881 | 4:14:14 | 4:36:36 | 4:51:27 | 5:09:28 | 5:51:45 | 4:00:39 |
| M18-24 | 93 | 4:01:33 | 4:15:23 | 4:37:09 | 4:52:34 | 5:44:13 | 4:01:33 |
| M25-29 | 187 | 4:02:27 | 4:29:21 | 4:39:10 | 5:03:21 | 5:49:25 | 4:00:39 |
| M30-34 | 144 | 4:31:36 | 4:40:27 | 4:56:27 | 5:07:35 | 5:50:24 | 4:23:16 |
| M35-39 | 103 | 4:09:03 | 4:19:25 | 4:43:15 | 5:10:56 | 5:50:46 | 4:06:11 |
| M40-44 | 103 | 4:34:36 | 4:51:24 | 4:56:41 | 5:07:04 | 5:54:33 | 4:24:48 |
| M45-49 | 70 | 4:32:05 | 4:39:36 | 4:54:12 | 5:05:19 | 5:43:25 | 4:32:05 |
| M50-54 | 61 | 4:31:53 | 4:44:34 | 5:04:16 | 5:18:42 | 5:53:42 | 4:31:53 |
| M55-59 | 62 | 4:42:56 | 4:57:25 | 5:02:48 | 5:15:54 | 5:49:20 | 4:42:56 |
| M60-64 | 34 | 4:55:12 | 5:02:54 | 5:11:19 | 5:33:36 | 6:16:28 | 4:55:12 |
| M65-69 | 18 | 4:49:32 | 4:49:32 | 5:22:09 | 5:49:28 | 6:35:10 | 4:49:32 |
| M70-74 | 5 | 5:54:21 | 5:54:21 | 5:54:21 | 5:54:21 | 7:31:50 | 5:54:21 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 368 | 4:54:12 | 5:12:44 | 5:21:15 | 5:43:46 | 6:23:57 | 4:39:09 |
| F18-24 | 48 | 5:12:15 | 5:17:55 | 5:23:12 | 5:38:00 | 6:19:12 | 5:12:15 |
| F25-29 | 91 | 4:39:09 | 5:12:47 | 5:19:19 | 5:38:53 | 6:20:02 | 4:39:09 |
| F30-34 | 59 | 5:03:17 | 5:14:47 | 5:33:13 | 5:58:13 | 6:28:23 | 5:03:17 |
| F35-39 | 44 | 4:42:51 | 5:01:11 | 5:05:56 | 5:20:58 | 5:56:55 | 4:42:51 |
| F40-44 | 36 | 5:07:57 | 5:15:44 | 5:40:54 | 5:48:46 | 6:28:41 | 5:07:57 |
| F45-49 | 36 | 4:45:05 | 5:11:09 | 5:12:44 | 5:22:22 | 6:22:35 | 4:45:05 |
| F50-54 | 18 | 5:24:10 | 5:24:10 | 5:31:36 | 5:51:29 | 7:03:05 | 5:24:10 |
| F55-59 | 18 | 5:29:25 | 5:29:25 | 5:43:47 | 5:44:56 | 5:55:28 | 5:29:25 |
| F60-64 | 11 | 5:52:49 | 5:52:49 | 5:54:43 | 6:38:51 | 7:12:47 | 5:52:49 |
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.