Age-group thresholds
IRONMAN 70.3 Santa Cruz · 10 editions (2015, 2016, 2017, 2018, 2019, 2021, 2022, 2023, 2024, 2025) · 18,923 finishers
Editions: 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 | 13,754 | 4:07:54 | 4:35:38 | 4:51:02 | 5:10:52 | 5:55:14 | 3:33:57 |
| MPRO | 157 | 3:33:58 | 3:42:23 | 3:46:29 | 3:51:59 | 4:00:55 | 3:33:57 |
| M18-24 | 732 | 4:11:15 | 4:33:00 | 4:43:52 | 5:02:51 | 5:44:16 | 3:59:51 |
| M25-29 | 1,790 | 4:14:11 | 4:28:30 | 4:46:37 | 5:06:18 | 5:49:20 | 3:54:06 |
| M30-34 | 2,154 | 4:13:35 | 4:33:37 | 4:48:03 | 5:05:54 | 5:51:44 | 4:00:04 |
| M35-39 | 2,088 | 4:18:41 | 4:37:16 | 4:49:47 | 5:07:30 | 5:52:24 | 4:00:00 |
| M40-44 | 1,933 | 4:23:26 | 4:38:55 | 4:52:52 | 5:11:53 | 5:53:54 | 3:58:32 |
| M45-49 | 1,728 | 4:28:39 | 4:46:18 | 4:57:56 | 5:13:30 | 5:54:54 | 4:09:36 |
| M50-54 | 1,517 | 4:32:10 | 4:48:25 | 5:01:02 | 5:20:11 | 6:01:39 | 4:07:54 |
| M55-59 | 946 | 4:37:56 | 4:50:34 | 5:04:11 | 5:25:55 | 6:10:03 | 4:26:17 |
| M60-64 | 473 | 4:53:34 | 5:15:42 | 5:25:25 | 5:44:12 | 6:27:10 | 4:29:45 |
| M65-69 | 163 | 5:02:34 | 5:28:58 | 5:39:33 | 5:52:30 | 6:42:30 | 4:45:11 |
| M70-74 | 57 | 5:58:08 | 5:58:49 | 6:02:11 | 6:26:11 | 6:58:01 | 5:58:08 |
| M75-79 | 13 | 6:21:09 | 6:21:09 | 6:37:32 | 6:56:18 | 7:15:34 | 6:21:09 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 5,169 | 4:30:21 | 4:59:53 | 5:17:49 | 5:40:07 | 6:25:57 | 4:08:24 |
| FPRO | 87 | 4:08:24 | 4:10:54 | 4:12:09 | 4:17:38 | 4:29:28 | 4:08:24 |
| F18-24 | 259 | 4:42:28 | 4:59:14 | 5:16:32 | 5:34:21 | 6:10:29 | 4:28:01 |
| F25-29 | 785 | 4:43:08 | 4:59:40 | 5:09:55 | 5:28:29 | 6:08:06 | 4:32:35 |
| F30-34 | 860 | 4:43:47 | 4:59:09 | 5:17:48 | 5:39:11 | 6:20:28 | 4:32:17 |
| F35-39 | 697 | 4:40:57 | 4:56:36 | 5:11:42 | 5:36:13 | 6:20:46 | 4:30:14 |
| F40-44 | 733 | 4:48:54 | 5:04:32 | 5:19:58 | 5:44:46 | 6:29:51 | 4:29:35 |
| F45-49 | 620 | 4:57:18 | 5:17:45 | 5:28:11 | 5:45:44 | 6:30:33 | 4:38:41 |
| F50-54 | 544 | 5:12:00 | 5:23:54 | 5:36:04 | 5:55:43 | 6:40:44 | 5:03:48 |
| F55-59 | 352 | 5:14:24 | 5:31:46 | 5:44:07 | 6:03:48 | 6:46:40 | 5:07:39 |
| F60-64 | 154 | 5:32:08 | 5:38:59 | 6:00:35 | 6:20:31 | 6:55:36 | 5:30:03 |
| F65-69 | 57 | 5:55:01 | 6:15:48 | 6:33:10 | 6:49:58 | 7:12:55 | 5:55:01 |
| F70-74 | 20 | 6:52:32 | 6:52:32 | 6:54:24 | 7:02:10 | 7:29:49 | 6:52:32 |
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.