Chad Koyama has 5 recorded races from Clarksville, TN, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2026-04-26 | 2026 Rock 'n' Roll Nashville Marathon | Marathon | 5:23:54 | 2409 |
| 2025-04-26 | 2025 Rock 'n' Roll Nashville Marathon | Marathon | 4:58:11 | 1877 |
| 2024-04-27 | 2024 Rock 'n' Roll Nashville Marathon | Marathon | 5:25:56 | 2235 |
| 2023-04-23 | 2023 Rock 'n' Roll Nashville Marathon | Marathon | 4:54:02 | 1565 |
| 2022-04-23 | 2022 Rock 'n' Roll Nashville Marathon | Marathon | 5:09:45 | 986 |