Age-group thresholds
IRONMAN Chattanooga · 12 editions (2014, 2015, 2016, 2017, 2018, 2019, 2021, 2022, 2023, 2024, 2025, 2026) · 19,879 finishers
Editions: 2014 · 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 | 14,108 | 8:25:50 | 9:38:51 | 10:21:11 | 11:14:01 | 12:53:02 | 6:32:11 |
| MPRO | 181 | 6:32:31 | 6:55:04 | 7:12:44 | 7:38:52 | 8:29:51 | 6:32:11 |
| M18-24 | 424 | 8:26:04 | 9:31:44 | 9:54:11 | 10:50:34 | 12:41:27 | 8:20:53 |
| M25-29 | 1,101 | 8:45:37 | 9:34:32 | 10:13:02 | 11:00:22 | 12:36:45 | 7:43:27 |
| M30-34 | 1,662 | 8:34:26 | 9:29:06 | 10:00:53 | 10:45:19 | 12:32:50 | 7:33:11 |
| M35-39 | 1,999 | 8:37:57 | 9:29:25 | 10:09:00 | 10:56:29 | 12:25:37 | 7:37:50 |
| M40-44 | 2,460 | 9:03:06 | 9:51:07 | 10:28:23 | 11:14:03 | 12:44:31 | 7:15:22 |
| M45-49 | 2,297 | 9:02:47 | 10:00:59 | 10:37:00 | 11:21:39 | 12:55:46 | 8:03:19 |
| M50-54 | 2,065 | 9:16:42 | 10:12:35 | 10:54:42 | 11:43:17 | 13:17:24 | 8:10:53 |
| M55-59 | 1,163 | 9:43:46 | 10:37:21 | 11:13:00 | 11:57:22 | 13:31:36 | 8:01:22 |
| M60-64 | 550 | 10:03:34 | 10:58:27 | 11:30:35 | 12:22:36 | 13:59:31 | 8:22:12 |
| M65-69 | 157 | 10:17:55 | 11:30:33 | 12:05:13 | 12:44:54 | 14:08:41 | 9:49:43 |
| M70-74 | 40 | 11:07:46 | 12:30:06 | 12:54:23 | 13:40:20 | 15:10:16 | 11:07:46 |
| M75-79 | 9 | 12:55:07 | 12:55:07 | 12:55:07 | 13:22:40 | 15:11:51 | 12:55:07 |
Women
| Age group | Finishers | Top 1% | Top 5% | Top 10% | Top 20% | Median | Best |
|---|---|---|---|---|---|---|---|
| All age groups | 5,771 | 9:10:23 | 10:19:34 | 11:02:35 | 11:55:15 | 13:35:54 | 7:17:13 |
| FPRO | 111 | 7:20:45 | 7:35:04 | 7:57:26 | 8:50:49 | 9:33:41 | 7:17:13 |
| F18-24 | 119 | 9:51:02 | 10:24:44 | 11:15:06 | 11:44:39 | 13:09:10 | 9:46:36 |
| F25-29 | 393 | 9:15:19 | 10:16:11 | 10:51:21 | 11:38:30 | 13:17:52 | 8:21:08 |
| F30-34 | 658 | 8:59:34 | 10:07:40 | 10:45:15 | 11:32:14 | 13:16:11 | 8:25:20 |
| F35-39 | 877 | 9:15:21 | 10:14:46 | 10:53:14 | 11:50:07 | 13:26:00 | 8:19:49 |
| F40-44 | 1,152 | 9:45:55 | 10:35:16 | 11:10:56 | 11:51:31 | 13:29:10 | 8:17:13 |
| F45-49 | 992 | 9:39:39 | 10:53:07 | 11:23:53 | 12:14:17 | 13:40:22 | 8:34:30 |
| F50-54 | 828 | 10:00:42 | 11:07:57 | 11:39:48 | 12:23:00 | 13:59:31 | 8:39:44 |
| F55-59 | 427 | 9:56:18 | 11:11:41 | 12:00:48 | 12:50:03 | 14:13:20 | 9:37:22 |
| F60-64 | 175 | 10:03:35 | 10:57:25 | 12:00:57 | 13:21:28 | 14:41:33 | 9:38:16 |
| F65-69 | 32 | 10:27:03 | 11:56:16 | 12:11:17 | 13:29:33 | 15:00:37 | 10:27:03 |
| F70-74 | 7 | 12:56:25 | 12:56:25 | 12:56:25 | 13:12:57 | 14:36:23 | 12:56:25 |
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.