| William Bradley's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Red Feather Trail Jamboree 2024 Half (Half Marathon) | Colorado, US | 42 | Sunday, September 22, 2024 | Not yet started |
| Blue Sky Marathon 2020 (Blue Sky) | Colorado, US | 38 | Saturday, November 14, 2020 | 04:56:34.00 |
| Never Summer 100k (2019) | Colorado, US | 36 | Saturday, July 27, 2019 | 22:25:27.00 |
| Blue Sky Trail Marathon (2017) | CO | 35 | Saturday, October 21, 2017 | 05:19:54.00 |