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 | 748 | 4:16:36 | 4:46:15 | 5:02:35 | 5:28:23 | 6:12:29 | 4:02:10 |
| M18-24 | 83 | 4:14:17 | 4:25:18 | 4:52:23 | 5:08:10 | 6:03:40 | 4:14:17 |
| M25-29 | 134 | 4:12:07 | 4:32:38 | 4:51:32 | 5:20:19 | 6:10:38 | 4:11:31 |
| M30-34 | 132 | 4:38:22 | 4:54:53 | 5:11:58 | 5:40:42 | 6:15:39 | 4:16:28 |
| M35-39 | 94 | 4:02:10 | 4:31:47 | 4:57:46 | 5:24:27 | 6:05:44 | 4:02:10 |
| M40-44 | 87 | 4:20:47 | 4:50:06 | 5:06:56 | 5:41:28 | 6:24:03 | 4:20:47 |
| M45-49 | 71 | 4:41:42 | 4:53:27 | 5:12:08 | 5:44:03 | 6:12:29 | 4:41:42 |
| M50-54 | 54 | 4:33:42 | 4:49:47 | 5:12:52 | 5:23:47 | 6:10:12 | 4:33:42 |
| M55-59 | 46 | 4:40:23 | 5:00:36 | 5:08:28 | 5:17:33 | 6:08:39 | 4:40:23 |
| M60-64 | 31 | 5:04:08 | 5:19:46 | 5:38:09 | 5:48:07 | 6:38:02 | 5:04:08 |
| M65-69 | 7 | 5:48:26 | 5:48:26 | 5:48:26 | 6:00:11 | 6:31:46 | 5:48:26 |
| M70-74 | 8 | 6:11:30 | 6:11:30 | 6:11:30 | 6:31:36 | 6:50:05 | 6:11:30 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 301 | 4:51:05 | 5:12:24 | 5:28:15 | 5:52:50 | 6:38:52 | 4:38:54 |
| F18-24 | 30 | 5:30:56 | 5:38:46 | 5:53:11 | 6:04:59 | 6:38:19 | 5:30:56 |
| F25-29 | 45 | 4:43:37 | 4:51:05 | 5:25:13 | 5:53:05 | 6:40:51 | 4:43:37 |
| F30-34 | 65 | 4:52:43 | 5:11:03 | 5:17:29 | 5:51:39 | 6:30:53 | 4:52:43 |
| F35-39 | 45 | 5:10:11 | 5:12:24 | 5:22:45 | 5:43:25 | 6:56:48 | 5:10:11 |
| F40-44 | 27 | 4:38:54 | 4:54:21 | 5:04:08 | 5:30:04 | 6:16:43 | 4:38:54 |
| F45-49 | 24 | 5:03:56 | 5:13:37 | 5:33:43 | 5:51:52 | 6:41:14 | 5:03:56 |
| F50-54 | 29 | 5:12:54 | 5:24:06 | 5:24:31 | 5:56:22 | 6:19:11 | 5:12:54 |
| F55-59 | 21 | 5:23:17 | 5:24:45 | 5:45:44 | 5:50:53 | 6:26:34 | 5:23:17 |
| F60-64 | 8 | 5:36:24 | 5:36:24 | 5:36:24 | 6:07:25 | 7:22:19 | 5:36:24 |
| F65-69 | 5 | 6:08:49 | 6:08:49 | 6:08:49 | 6:08:49 | 6:35:10 | 6:08:49 |
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.