Age-group thresholds
IRONMAN 70.3 Westfriesland · 5 editions (2021, 2022, 2023, 2024, 2025) · 6,532 finishers
Editions: 2021 · 2022 · 2023 · 2024 · 2025
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 | 5,317 | 4:10:36 | 4:31:12 | 4:43:12 | 4:58:10 | 5:31:08 | 3:43:38 |
| MPRO | 30 | 3:43:38 | 3:44:06 | 3:45:55 | 3:47:56 | 3:56:06 | 3:43:38 |
| M18-24 | 330 | 4:06:15 | 4:23:15 | 4:38:46 | 5:01:15 | 5:37:44 | 4:01:59 |
| M25-29 | 752 | 4:09:43 | 4:25:30 | 4:36:36 | 4:54:24 | 5:26:37 | 4:00:57 |
| M30-34 | 937 | 4:10:57 | 4:25:50 | 4:37:15 | 4:53:20 | 5:27:56 | 3:55:37 |
| M35-39 | 737 | 4:14:33 | 4:28:34 | 4:41:12 | 4:55:19 | 5:26:56 | 4:01:49 |
| M40-44 | 756 | 4:17:17 | 4:33:17 | 4:41:59 | 4:55:32 | 5:26:42 | 4:02:01 |
| M45-49 | 657 | 4:26:40 | 4:40:24 | 4:48:36 | 5:01:30 | 5:31:30 | 4:07:59 |
| M50-54 | 598 | 4:22:32 | 4:43:05 | 4:54:52 | 5:07:36 | 5:35:33 | 4:14:46 |
| M55-59 | 313 | 4:36:26 | 4:48:31 | 4:56:56 | 5:08:56 | 5:46:31 | 4:33:55 |
| M60-64 | 163 | 4:45:32 | 4:55:29 | 5:07:37 | 5:23:36 | 5:59:38 | 4:33:23 |
| M65-69 | 31 | 5:21:54 | 5:22:09 | 5:26:23 | 5:38:17 | 6:10:16 | 5:21:54 |
| M70-74 | 10 | 5:32:58 | 5:32:58 | 5:32:58 | 5:42:10 | 6:47:28 | 5:32:58 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 1,215 | 4:29:33 | 4:55:43 | 5:08:05 | 5:26:20 | 5:58:20 | 4:12:25 |
| FPRO | 14 | 4:12:25 | 4:12:25 | 4:14:05 | 4:15:41 | 4:24:27 | 4:12:25 |
| F18-24 | 71 | 4:32:04 | 5:00:01 | 5:06:31 | 5:20:41 | 6:09:33 | 4:32:04 |
| F25-29 | 215 | 4:35:47 | 4:52:28 | 5:02:25 | 5:21:56 | 5:54:21 | 4:31:53 |
| F30-34 | 223 | 4:31:08 | 4:53:01 | 5:00:46 | 5:20:29 | 5:53:39 | 4:24:25 |
| F35-39 | 177 | 4:47:13 | 5:07:19 | 5:14:30 | 5:29:18 | 5:56:13 | 4:38:59 |
| F40-44 | 167 | 4:37:04 | 4:52:34 | 5:03:38 | 5:23:48 | 5:59:02 | 4:26:34 |
| F45-49 | 138 | 5:02:04 | 5:05:56 | 5:15:14 | 5:29:28 | 6:00:35 | 4:59:54 |
| F50-54 | 112 | 4:52:50 | 5:09:01 | 5:23:45 | 5:35:54 | 6:06:05 | 4:51:49 |
| F55-59 | 63 | 5:14:53 | 5:25:59 | 5:32:04 | 5:36:34 | 6:08:55 | 5:14:53 |
| F60-64 | 26 | 5:36:36 | 5:45:26 | 5:55:52 | 6:05:00 | 6:33:58 | 5:36:36 |
| F65-69 | 8 | 5:35:45 | 5:35:45 | 5:35:45 | 5:55:05 | 6:15:11 | 5:35:45 |
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.