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 | 1,749 | 4:16:23 | 4:32:14 | 4:46:04 | 5:06:54 | 5:49:02 | 3:59:33 |
| M18-24 | 104 | 4:09:21 | 4:26:15 | 4:34:49 | 5:14:09 | 6:00:10 | 3:59:56 |
| M25-29 | 253 | 4:10:15 | 4:27:38 | 4:42:40 | 5:05:07 | 5:44:26 | 4:03:57 |
| M30-34 | 251 | 4:03:42 | 4:31:07 | 4:45:47 | 4:56:23 | 5:40:19 | 3:59:33 |
| M35-39 | 250 | 4:17:11 | 4:23:54 | 4:33:26 | 4:51:18 | 5:34:43 | 4:13:51 |
| M40-44 | 252 | 4:18:00 | 4:30:26 | 4:41:43 | 5:05:54 | 5:45:41 | 4:12:12 |
| M45-49 | 174 | 4:29:15 | 4:37:12 | 4:50:09 | 5:08:02 | 5:42:09 | 4:26:54 |
| M50-54 | 188 | 4:30:51 | 4:40:34 | 4:51:20 | 5:11:11 | 5:50:37 | 4:29:29 |
| M55-59 | 157 | 4:36:33 | 4:54:29 | 5:04:29 | 5:22:35 | 6:20:36 | 4:29:24 |
| M60-64 | 67 | 4:43:44 | 5:03:30 | 5:06:35 | 5:24:08 | 6:09:04 | 4:43:44 |
| M65-69 | 38 | 5:13:32 | 5:18:55 | 5:38:28 | 6:02:08 | 6:37:45 | 5:13:32 |
| M70-74 | 12 | 5:27:46 | 5:27:46 | 5:40:11 | 5:42:48 | 6:22:14 | 5:27:46 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 816 | 4:44:03 | 5:01:35 | 5:14:24 | 5:31:03 | 6:19:12 | 4:31:02 |
| F18-24 | 36 | 4:59:16 | 5:06:20 | 5:07:13 | 5:24:42 | 6:18:16 | 4:59:16 |
| F25-29 | 104 | 4:33:44 | 4:45:14 | 4:57:08 | 5:21:11 | 6:03:27 | 4:31:02 |
| F30-34 | 111 | 4:44:17 | 4:54:52 | 5:05:41 | 5:18:37 | 6:00:20 | 4:31:42 |
| F35-39 | 104 | 4:45:02 | 4:50:54 | 5:03:26 | 5:23:12 | 6:11:56 | 4:37:35 |
| F40-44 | 100 | 4:43:34 | 5:07:15 | 5:18:44 | 5:34:12 | 6:16:12 | 4:43:34 |
| F45-49 | 115 | 4:55:27 | 5:07:43 | 5:17:59 | 5:25:22 | 6:07:38 | 4:47:22 |
| F50-54 | 99 | 4:44:03 | 5:07:42 | 5:16:59 | 5:39:32 | 6:26:36 | 4:44:03 |
| F55-59 | 71 | 4:53:44 | 5:19:33 | 5:39:42 | 6:01:31 | 6:43:13 | 4:53:44 |
| F60-64 | 52 | 5:09:24 | 5:49:48 | 5:54:36 | 6:06:52 | 6:44:55 | 5:09:24 |
| F65-69 | 22 | 5:55:09 | 6:05:20 | 6:06:22 | 6:53:00 | 7:39:57 | 5:55:09 |
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.