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 | 753 | 4:12:26 | 4:33:58 | 4:43:44 | 4:58:05 | 5:34:19 | 4:02:24 |
| M18-24 | 41 | 4:04:35 | 4:12:50 | 4:25:45 | 4:52:34 | 5:37:44 | 4:04:35 |
| M25-29 | 90 | 4:10:09 | 4:28:16 | 4:33:42 | 4:45:44 | 5:33:05 | 4:10:09 |
| M30-34 | 132 | 4:03:48 | 4:28:05 | 4:42:39 | 4:54:44 | 5:31:40 | 4:02:24 |
| M35-39 | 98 | 4:09:41 | 4:27:52 | 4:41:12 | 4:56:41 | 5:22:38 | 4:09:41 |
| M40-44 | 137 | 4:18:12 | 4:36:02 | 4:42:27 | 4:57:36 | 5:31:20 | 4:15:19 |
| M45-49 | 104 | 4:35:46 | 4:43:54 | 4:54:28 | 5:09:14 | 5:33:11 | 4:23:43 |
| M50-54 | 98 | 4:33:53 | 4:38:14 | 4:50:29 | 5:04:15 | 5:37:55 | 4:33:53 |
| M55-59 | 40 | 4:41:54 | 4:51:00 | 5:03:32 | 5:18:05 | 5:55:49 | 4:41:54 |
| M60-64 | 12 | 4:53:08 | 4:53:08 | 4:58:45 | 5:05:30 | 5:58:34 | 4:53:08 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 105 | 4:31:53 | 5:00:04 | 5:05:13 | 5:18:58 | 6:03:33 | 4:24:25 |
| F25-29 | 18 | 4:31:53 | 4:31:53 | 5:04:55 | 5:07:11 | 5:46:15 | 4:31:53 |
| F30-34 | 17 | 4:24:25 | 4:24:25 | 4:49:31 | 5:05:13 | 5:57:34 | 4:24:25 |
| F35-39 | 13 | 4:48:05 | 4:48:05 | 5:18:46 | 5:18:54 | 5:55:24 | 4:48:05 |
| F40-44 | 14 | 5:00:04 | 5:00:04 | 5:09:23 | 5:11:30 | 5:46:28 | 5:00:04 |
| F45-49 | 20 | 5:04:01 | 5:04:01 | 5:05:33 | 5:44:07 | 6:08:07 | 5:04:01 |
| F50-54 | 15 | 4:51:49 | 4:51:49 | 5:20:22 | 5:26:11 | 6:02:07 | 4:51:49 |
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.