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 | 1,482 | 4:43:52 | 5:02:13 | 5:17:19 | 5:36:45 | 6:15:09 | 4:30:15 |
| M18-24 | 66 | 4:42:36 | 4:55:10 | 5:09:32 | 5:33:06 | 6:12:59 | 4:42:36 |
| M25-29 | 159 | 4:34:31 | 4:50:19 | 5:09:27 | 5:28:42 | 6:06:14 | 4:32:04 |
| M30-34 | 189 | 4:36:34 | 4:50:41 | 5:00:45 | 5:17:40 | 6:02:13 | 4:31:54 |
| M35-39 | 225 | 4:53:54 | 5:04:34 | 5:14:40 | 5:33:10 | 6:09:46 | 4:30:15 |
| M40-44 | 239 | 4:50:21 | 4:59:58 | 5:16:12 | 5:33:28 | 6:09:03 | 4:46:42 |
| M45-49 | 240 | 4:55:44 | 5:08:31 | 5:30:23 | 5:40:27 | 6:19:16 | 4:40:14 |
| M50-54 | 179 | 4:57:20 | 5:11:34 | 5:29:07 | 5:53:38 | 6:23:34 | 4:42:31 |
| M55-59 | 99 | 4:54:44 | 5:18:59 | 5:29:09 | 5:46:59 | 6:31:15 | 4:54:44 |
| M60-64 | 64 | 5:35:02 | 5:40:16 | 5:53:18 | 6:05:34 | 6:50:28 | 5:35:02 |
| M65-69 | 13 | 5:29:07 | 5:29:07 | 5:30:07 | 6:01:19 | 6:45:10 | 5:29:07 |
| M70-74 | 7 | 5:59:30 | 5:59:30 | 5:59:30 | 7:01:27 | 7:18:17 | 5:59:30 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 594 | 5:10:35 | 5:34:36 | 5:47:44 | 6:08:01 | 6:47:55 | 4:57:25 |
| F18-24 | 21 | 5:25:15 | 5:36:51 | 5:42:30 | 5:53:20 | 6:56:37 | 5:25:15 |
| F25-29 | 65 | 5:10:35 | 5:31:34 | 5:38:29 | 5:58:25 | 6:33:00 | 5:10:35 |
| F30-34 | 88 | 4:57:25 | 5:18:29 | 5:37:14 | 5:55:13 | 6:37:54 | 4:57:25 |
| F35-39 | 89 | 5:00:14 | 5:28:49 | 5:39:28 | 5:59:30 | 6:45:11 | 5:00:14 |
| F40-44 | 87 | 5:03:17 | 5:30:25 | 5:44:36 | 6:00:46 | 6:44:54 | 5:03:17 |
| F45-49 | 89 | 5:19:01 | 5:43:50 | 5:59:14 | 6:14:29 | 6:52:43 | 5:19:01 |
| F50-54 | 73 | 5:13:30 | 5:47:58 | 6:05:58 | 6:20:20 | 6:53:28 | 5:13:30 |
| F55-59 | 53 | 5:32:36 | 5:59:04 | 6:11:07 | 6:29:15 | 7:10:23 | 5:32:36 |
| F60-64 | 21 | 5:49:05 | 6:03:19 | 6:06:11 | 6:42:06 | 7:29:36 | 5:49:05 |
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.