Age-group thresholds
IRONMAN 70.3 Chattanooga · 11 editions (2015, 2016, 2017, 2018, 2019, 2021, 2022, 2023, 2024, 2025, 2026) · 26,964 finishers
Editions: 2015 · 2016 · 2017 · 2018 · 2019 · 2021 · 2022 · 2023 · 2024 · 2025 · 2026
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 | 18,119 | 3:54:20 | 4:25:15 | 4:42:51 | 5:04:32 | 5:54:35 | 3:08:08 |
| MPRO | 290 | 3:12:48 | 3:23:30 | 3:34:50 | 3:46:48 | 4:01:47 | 3:08:08 |
| M18-24 | 831 | 3:55:31 | 4:23:03 | 4:38:05 | 4:57:56 | 5:50:17 | 3:41:19 |
| M25-29 | 1,752 | 3:58:04 | 4:22:47 | 4:39:09 | 4:57:37 | 5:54:28 | 3:35:35 |
| M30-34 | 2,406 | 4:00:29 | 4:25:13 | 4:38:37 | 4:57:54 | 5:48:34 | 3:22:00 |
| M35-39 | 2,660 | 4:02:36 | 4:27:26 | 4:40:18 | 4:58:45 | 5:45:46 | 3:39:31 |
| M40-44 | 2,779 | 4:06:14 | 4:31:01 | 4:46:00 | 5:04:42 | 5:49:18 | 3:35:04 |
| M45-49 | 2,516 | 4:09:52 | 4:35:21 | 4:49:18 | 5:08:38 | 5:54:19 | 3:36:00 |
| M50-54 | 2,148 | 4:12:52 | 4:40:13 | 4:55:53 | 5:13:22 | 6:01:50 | 3:39:40 |
| M55-59 | 1,477 | 4:21:55 | 4:47:27 | 5:01:57 | 5:22:25 | 6:08:15 | 3:44:37 |
| M60-64 | 828 | 4:22:33 | 4:55:27 | 5:11:12 | 5:32:29 | 6:24:18 | 3:47:37 |
| M65-69 | 303 | 4:36:45 | 5:08:21 | 5:26:26 | 5:46:41 | 6:36:23 | 4:23:36 |
| M70-74 | 91 | 4:43:34 | 5:08:02 | 5:43:49 | 5:53:53 | 6:49:59 | 4:43:34 |
| M75-79 | 34 | 5:50:28 | 6:03:49 | 6:16:25 | 6:33:26 | 7:21:26 | 5:50:28 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 8,845 | 4:19:00 | 4:46:37 | 5:05:27 | 5:29:18 | 6:19:26 | 3:46:46 |
| FPRO | 222 | 3:50:46 | 3:59:38 | 4:09:23 | 4:16:42 | 4:32:15 | 3:46:46 |
| F18-24 | 280 | 4:27:07 | 4:58:46 | 5:15:05 | 5:37:23 | 6:18:44 | 4:05:52 |
| F25-29 | 779 | 4:29:40 | 4:46:18 | 4:57:57 | 5:19:33 | 6:06:57 | 4:07:24 |
| F30-34 | 1,028 | 4:31:46 | 4:52:49 | 5:06:52 | 5:24:13 | 6:12:06 | 3:53:14 |
| F35-39 | 1,330 | 4:22:17 | 4:46:58 | 5:02:32 | 5:24:29 | 6:12:13 | 3:53:19 |
| F40-44 | 1,554 | 4:27:53 | 4:51:41 | 5:09:00 | 5:30:14 | 6:15:49 | 4:00:52 |
| F45-49 | 1,370 | 4:30:21 | 5:02:26 | 5:17:52 | 5:37:43 | 6:23:02 | 4:02:18 |
| F50-54 | 1,091 | 4:43:57 | 5:04:49 | 5:21:15 | 5:44:14 | 6:29:30 | 4:06:59 |
| F55-59 | 716 | 4:50:30 | 5:14:01 | 5:27:31 | 5:48:40 | 6:35:49 | 4:04:14 |
| F60-64 | 336 | 4:49:40 | 5:11:08 | 5:41:36 | 5:58:43 | 6:50:15 | 4:36:16 |
| F65-69 | 105 | 5:15:57 | 5:37:27 | 5:51:29 | 6:10:03 | 6:56:12 | 5:04:17 |
| F70-74 | 31 | 5:34:41 | 6:02:16 | 6:19:15 | 6:42:01 | 7:18:41 | 5:34:41 |
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.