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 | 1,331 | 4:09:35 | 4:28:03 | 4:42:17 | 4:58:46 | 5:38:46 | 3:53:26 |
| M18-24 | 45 | 4:09:53 | 4:20:20 | 4:45:11 | 4:49:35 | 5:38:41 | 4:09:53 |
| M25-29 | 135 | 4:05:52 | 4:17:49 | 4:28:03 | 4:43:50 | 5:27:38 | 3:53:26 |
| M30-34 | 169 | 4:00:42 | 4:13:44 | 4:26:50 | 4:51:56 | 5:28:39 | 3:58:58 |
| M35-39 | 184 | 4:07:25 | 4:25:04 | 4:33:50 | 4:46:49 | 5:30:09 | 4:07:21 |
| M40-44 | 238 | 4:09:53 | 4:30:38 | 4:44:48 | 4:59:01 | 5:39:40 | 3:59:56 |
| M45-49 | 231 | 4:22:21 | 4:38:34 | 4:50:51 | 5:05:15 | 5:37:26 | 4:06:25 |
| M50-54 | 167 | 4:27:39 | 4:42:55 | 4:50:39 | 5:09:42 | 5:49:45 | 4:26:12 |
| M55-59 | 113 | 4:27:36 | 4:52:52 | 5:06:51 | 5:21:52 | 5:52:17 | 4:26:39 |
| M60-64 | 32 | 4:40:34 | 5:02:24 | 5:16:10 | 5:23:34 | 5:51:06 | 4:40:34 |
| M65-69 | 12 | 5:02:09 | 5:02:09 | 5:13:16 | 5:21:26 | 5:29:56 | 5:02:09 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 528 | 4:36:50 | 4:53:55 | 5:07:42 | 5:24:31 | 6:07:31 | 4:25:38 |
| F18-24 | 15 | 4:46:03 | 4:46:03 | 4:49:49 | 4:54:00 | 6:02:05 | 4:46:03 |
| F25-29 | 63 | 4:32:26 | 4:53:42 | 5:07:42 | 5:17:02 | 5:59:29 | 4:32:26 |
| F30-34 | 80 | 4:41:02 | 4:48:09 | 5:01:25 | 5:20:28 | 5:52:51 | 4:41:02 |
| F35-39 | 76 | 4:35:13 | 4:53:09 | 5:02:47 | 5:21:46 | 6:03:41 | 4:35:13 |
| F40-44 | 78 | 4:25:38 | 4:43:47 | 4:58:46 | 5:11:44 | 6:06:31 | 4:25:38 |
| F45-49 | 97 | 4:45:40 | 5:02:21 | 5:10:09 | 5:26:53 | 6:13:14 | 4:45:40 |
| F50-54 | 71 | 4:53:19 | 5:13:40 | 5:33:43 | 5:49:48 | 6:29:30 | 4:53:19 |
| F55-59 | 29 | 5:08:01 | 5:10:42 | 5:22:05 | 5:33:36 | 6:07:56 | 5:08:01 |
| F60-64 | 12 | 5:24:15 | 5:24:15 | 5:47:44 | 5:49:43 | 6:28:07 | 5:24:15 |
| F65-69 | 6 | 5:49:12 | 5:49:12 | 5:49:12 | 6:05:30 | 6:07:31 | 5:49:12 |
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.