Dennis Karn has 3 recorded races from Columbia, TN, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2026-04-25 | 2026 Rock 'n' Roll Nashville Half Marathon | Half Marathon | 3:29:41 | 10238 |
| 2023-04-23 | 2023 Rock 'n' Roll Nashville Half Marathon | Half Marathon | 3:11:54 | 9747 |
| 2022-04-23 | 2022 Rock 'n' Roll Nashville Half Marathon | Half Marathon | 3:34:31 | 8445 |