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 | 1,065 | 4:19:36 | 4:37:48 | 4:53:37 | 5:14:09 | 5:57:39 | 3:59:39 |
| M18-24 | 44 | 4:07:13 | 4:28:35 | 4:30:14 | 4:57:03 | 5:45:23 | 4:07:13 |
| M25-29 | 104 | 4:03:59 | 4:23:21 | 4:37:14 | 5:03:47 | 5:44:23 | 3:59:39 |
| M30-34 | 158 | 4:12:43 | 4:34:05 | 4:48:03 | 5:05:51 | 5:50:45 | 4:07:10 |
| M35-39 | 156 | 4:19:28 | 4:33:40 | 4:45:06 | 5:06:59 | 5:45:47 | 4:19:00 |
| M40-44 | 161 | 4:20:27 | 4:34:59 | 4:52:24 | 5:09:48 | 5:53:38 | 4:19:36 |
| M45-49 | 148 | 4:38:41 | 4:52:35 | 5:07:57 | 5:18:00 | 6:02:01 | 4:28:18 |
| M50-54 | 120 | 4:25:44 | 4:40:00 | 4:58:47 | 5:14:59 | 6:13:30 | 4:24:56 |
| M55-59 | 98 | 4:45:48 | 4:56:56 | 5:03:28 | 5:18:42 | 6:11:12 | 4:45:48 |
| M60-64 | 41 | 5:15:00 | 5:38:26 | 5:46:11 | 6:05:51 | 6:30:48 | 5:15:00 |
| M65-69 | 19 | 5:05:41 | 5:05:41 | 5:07:56 | 5:28:44 | 6:30:25 | 5:05:41 |
| M70-74 | 8 | 5:17:32 | 5:17:32 | 5:17:32 | 5:46:08 | 6:17:52 | 5:17:32 |
| M75-79 | 7 | 6:49:07 | 6:49:07 | 6:49:07 | 6:57:28 | 7:41:47 | 6:49:07 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 449 | 4:34:40 | 5:07:38 | 5:20:58 | 5:41:56 | 6:28:03 | 4:23:36 |
| F18-24 | 19 | 4:23:36 | 4:23:36 | 4:28:44 | 4:51:37 | 6:10:52 | 4:23:36 |
| F25-29 | 40 | 4:26:39 | 4:34:40 | 4:58:23 | 5:43:21 | 6:24:53 | 4:26:39 |
| F30-34 | 68 | 4:26:51 | 5:07:38 | 5:18:35 | 5:39:47 | 6:33:22 | 4:26:51 |
| F35-39 | 61 | 4:35:13 | 4:57:05 | 5:12:45 | 5:28:35 | 6:11:31 | 4:35:13 |
| F40-44 | 65 | 4:38:01 | 5:10:47 | 5:22:22 | 5:39:26 | 6:26:16 | 4:38:01 |
| F45-49 | 79 | 4:56:30 | 5:11:57 | 5:26:59 | 5:40:07 | 6:19:29 | 4:56:30 |
| F50-54 | 54 | 4:41:24 | 5:11:43 | 5:35:31 | 6:02:55 | 6:47:43 | 4:41:24 |
| F55-59 | 33 | 5:33:29 | 5:35:22 | 5:42:46 | 5:52:40 | 6:54:26 | 5:33:29 |
| F60-64 | 22 | 5:13:02 | 5:50:20 | 5:53:23 | 6:08:11 | 7:05:23 | 5:13:02 |
| F65-69 | 8 | 6:05:53 | 6:05:53 | 6:05:53 | 6:39:09 | 7:24:55 | 6:05:53 |
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.