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 | 1,047 | 4:03:13 | 4:20:38 | 4:33:17 | 4:46:39 | 5:24:25 | 3:56:03 |
| M18-24 | 33 | 4:03:13 | 4:04:43 | 4:07:39 | 4:17:30 | 4:58:52 | 4:03:13 |
| M25-29 | 47 | 3:56:03 | 4:12:11 | 4:22:53 | 4:31:45 | 5:14:51 | 3:56:03 |
| M30-34 | 133 | 4:00:00 | 4:08:03 | 4:23:31 | 4:46:18 | 5:22:04 | 3:56:04 |
| M35-39 | 235 | 4:02:43 | 4:24:40 | 4:34:19 | 4:44:16 | 5:25:20 | 3:56:39 |
| M40-44 | 235 | 4:07:35 | 4:26:16 | 4:33:54 | 4:45:58 | 5:17:22 | 3:57:44 |
| M45-49 | 165 | 4:13:52 | 4:18:26 | 4:27:03 | 4:48:28 | 5:21:59 | 4:02:47 |
| M50-54 | 88 | 4:26:11 | 4:33:46 | 4:38:23 | 4:49:54 | 5:35:58 | 4:26:11 |
| M55-59 | 48 | 4:23:38 | 4:28:24 | 4:45:07 | 5:05:35 | 5:27:52 | 4:23:38 |
| M60-64 | 38 | 4:31:40 | 4:35:00 | 4:44:13 | 5:00:39 | 5:30:56 | 4:31:40 |
| M65-69 | 18 | 4:53:47 | 4:53:47 | 4:58:12 | 5:35:37 | 6:03:19 | 4:53:47 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 228 | 4:27:28 | 4:52:12 | 5:03:43 | 5:24:57 | 5:59:14 | 4:22:31 |
| F18-24 | 9 | 4:26:55 | 4:26:55 | 4:26:55 | 5:04:10 | 5:48:01 | 4:26:55 |
| F25-29 | 20 | 4:29:21 | 4:29:21 | 4:33:58 | 5:08:59 | 5:50:27 | 4:29:21 |
| F30-34 | 40 | 4:27:28 | 4:35:42 | 4:42:06 | 5:23:54 | 5:53:12 | 4:27:28 |
| F35-39 | 38 | 4:35:30 | 4:49:04 | 4:52:12 | 5:10:29 | 5:48:33 | 4:35:30 |
| F40-44 | 52 | 4:22:31 | 5:03:00 | 5:14:00 | 5:29:32 | 6:00:25 | 4:22:31 |
| F45-49 | 35 | 4:52:30 | 4:59:17 | 5:13:20 | 5:25:02 | 6:23:37 | 4:52:30 |
| F50-54 | 12 | 4:56:50 | 4:56:50 | 5:25:45 | 5:29:32 | 5:49:33 | 4:56:50 |
| F55-59 | 16 | 5:03:14 | 5:03:14 | 5:14:06 | 5:26:03 | 5:46:56 | 5:03:14 |
| F60-64 | 5 | 6:34:11 | 6:34:11 | 6:34:11 | 6:34:11 | 6:49:47 | 6:34:11 |
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.