Age-group thresholds
IRONMAN 70.3 Muskoka · 14 editions (2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2021, 2022, 2023, 2024, 2025) · 15,369 finishers
Editions: 2011 · 2012 · 2013 · 2014 · 2015 · 2016 · 2017 · 2018 · 2019 · 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 | 11,120 | 4:27:25 | 4:49:46 | 5:03:40 | 5:22:35 | 6:02:20 | 4:01:20 |
| MPRO | 51 | 4:01:20 | 4:06:06 | 4:08:54 | 4:15:14 | 4:27:36 | 4:01:20 |
| M18-24 | 730 | 4:20:53 | 4:44:53 | 5:03:05 | 5:19:40 | 6:05:22 | 4:10:15 |
| M25-29 | 1,330 | 4:19:11 | 4:45:08 | 5:00:42 | 5:20:01 | 5:57:46 | 4:03:13 |
| M30-34 | 1,585 | 4:29:56 | 4:46:05 | 4:58:50 | 5:16:20 | 5:53:50 | 4:04:12 |
| M35-39 | 1,621 | 4:29:00 | 4:47:46 | 5:00:10 | 5:17:11 | 5:53:25 | 4:01:42 |
| M40-44 | 1,788 | 4:31:55 | 4:52:14 | 5:04:48 | 5:22:35 | 5:58:40 | 4:15:45 |
| M45-49 | 1,502 | 4:31:17 | 4:52:52 | 5:04:57 | 5:22:09 | 6:02:23 | 4:16:18 |
| M50-54 | 1,248 | 4:41:34 | 4:58:48 | 5:13:24 | 5:31:29 | 6:11:52 | 4:21:39 |
| M55-59 | 721 | 4:46:19 | 5:08:07 | 5:23:31 | 5:40:35 | 6:17:16 | 4:37:54 |
| M60-64 | 356 | 4:58:26 | 5:11:59 | 5:32:07 | 5:48:15 | 6:26:22 | 4:42:05 |
| M65-69 | 139 | 4:57:14 | 5:23:02 | 5:36:49 | 5:55:22 | 6:37:16 | 4:48:17 |
| M70-74 | 40 | 5:42:17 | 6:19:31 | 6:27:24 | 6:40:22 | 7:14:33 | 5:42:17 |
| M75-79 | 8 | 6:26:24 | 6:26:24 | 6:26:24 | 6:54:35 | 7:31:01 | 6:26:24 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 4,249 | 4:52:41 | 5:15:58 | 5:28:36 | 5:47:38 | 6:30:20 | 4:20:45 |
| FPRO | 44 | 4:29:34 | 4:34:47 | 4:38:16 | 4:44:16 | 4:53:05 | 4:29:34 |
| F18-24 | 226 | 5:02:10 | 5:17:26 | 5:29:34 | 5:43:55 | 6:19:32 | 4:42:49 |
| F25-29 | 607 | 5:00:49 | 5:19:28 | 5:30:28 | 5:46:55 | 6:22:56 | 4:20:45 |
| F30-34 | 602 | 4:56:58 | 5:13:43 | 5:23:23 | 5:36:43 | 6:23:06 | 4:41:53 |
| F35-39 | 653 | 4:52:34 | 5:14:29 | 5:25:17 | 5:42:34 | 6:21:48 | 4:30:49 |
| F40-44 | 634 | 4:56:42 | 5:17:45 | 5:29:28 | 5:47:58 | 6:32:48 | 4:43:00 |
| F45-49 | 600 | 4:58:46 | 5:19:39 | 5:31:27 | 5:53:04 | 6:34:19 | 4:50:37 |
| F50-54 | 481 | 5:12:13 | 5:28:42 | 5:39:45 | 6:01:58 | 6:40:13 | 5:03:34 |
| F55-59 | 258 | 5:20:04 | 5:38:44 | 5:52:46 | 6:04:47 | 6:50:11 | 5:18:41 |
| F60-64 | 110 | 5:40:57 | 5:52:44 | 6:00:29 | 6:11:30 | 6:55:45 | 5:14:12 |
| F65-69 | 29 | 6:30:43 | 6:31:16 | 6:37:57 | 6:52:34 | 7:24:22 | 6:30:43 |
| F70-74 | 5 | 5:54:14 | 5:54:14 | 5:54:14 | 5:54:14 | 7:24:42 | 5:54:14 |
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.