Karen Rucker has 4 recorded races from Boulder, Colorado, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2026-03-07 | Vacation Races | Antelope Canyon Ultras 55K | Ultra Marathon | 10:53:04 | 252 |
| 2025-03-07 | Vacation Races | Antelope Canyon Ultras 70K | Ultra Marathon | 14:07:54 | 34 |
| 2024-01-28 | 2024 Life Time Miami Marathon & Half Half Marathon | Half Marathon | 2:26:26 | 6859 |
| 2023-06-17 | 2023 Life Time Leadville Trail Marathon & Heavy Half 2023 Leadville Trail Marathon | Marathon | 6:45:16 | 714 |