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 | 1,356 | 4:38:59 | 5:06:55 | 5:24:27 | 5:47:41 | 6:37:35 | 4:19:30 |
| M18-24 | 83 | 4:24:41 | 5:08:36 | 5:18:04 | 5:38:08 | 6:25:16 | 4:24:41 |
| M25-29 | 134 | 4:27:09 | 4:53:14 | 5:14:41 | 5:39:21 | 6:28:45 | 4:19:30 |
| M30-34 | 177 | 4:35:56 | 4:44:19 | 5:02:11 | 5:33:18 | 6:21:11 | 4:25:02 |
| M35-39 | 201 | 4:43:31 | 5:05:16 | 5:20:57 | 5:38:19 | 6:29:31 | 4:25:04 |
| M40-44 | 186 | 4:43:52 | 5:12:44 | 5:30:31 | 5:50:53 | 6:40:35 | 4:35:34 |
| M45-49 | 186 | 4:38:27 | 4:55:04 | 5:13:22 | 5:46:07 | 6:37:34 | 4:37:59 |
| M50-54 | 171 | 4:56:45 | 5:20:09 | 5:35:10 | 5:53:54 | 6:38:21 | 4:52:58 |
| M55-59 | 127 | 5:20:33 | 5:43:22 | 5:54:09 | 6:18:26 | 6:59:14 | 5:09:14 |
| M60-64 | 54 | 5:29:52 | 5:43:09 | 6:06:06 | 6:19:54 | 6:50:40 | 5:29:52 |
| M65-69 | 28 | 5:28:23 | 5:44:52 | 6:11:06 | 6:16:59 | 6:44:02 | 5:28:23 |
| M70-74 | 8 | 6:25:11 | 6:25:11 | 6:25:11 | 6:32:05 | 6:46:32 | 6:25:11 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 620 | 5:09:24 | 5:30:33 | 5:43:49 | 6:10:50 | 6:58:11 | 5:00:55 |
| F18-24 | 30 | 5:08:12 | 5:29:34 | 5:35:16 | 5:57:58 | 6:45:47 | 5:08:12 |
| F25-29 | 57 | 5:00:55 | 5:27:42 | 5:42:25 | 6:14:14 | 6:47:30 | 5:00:55 |
| F30-34 | 68 | 5:18:23 | 5:31:47 | 5:36:14 | 6:01:53 | 6:50:59 | 5:18:23 |
| F35-39 | 74 | 5:15:26 | 5:23:46 | 5:35:29 | 5:48:43 | 6:36:04 | 5:15:26 |
| F40-44 | 102 | 5:09:24 | 5:23:17 | 5:33:20 | 6:03:12 | 6:41:45 | 5:07:13 |
| F45-49 | 95 | 5:04:12 | 5:28:18 | 5:41:24 | 6:08:18 | 6:58:11 | 5:04:12 |
| F50-54 | 90 | 5:01:59 | 5:45:13 | 6:11:38 | 6:38:19 | 7:20:16 | 5:01:59 |
| F55-59 | 63 | 5:40:37 | 6:09:10 | 6:15:56 | 6:30:41 | 7:11:56 | 5:40:37 |
| F60-64 | 32 | 5:57:05 | 6:08:32 | 6:23:26 | 7:06:01 | 7:18:03 | 5:57:05 |
| F65-69 | 6 | 5:43:08 | 5:43:08 | 5:43:08 | 6:45:59 | 7:03:13 | 5:43:08 |
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.