Ken Koyanagi has 4 recorded races from Sacramento, California, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2024-04-07 | Credit Union SACTOWN Run 5K Run | 5K | 27:40 | 140 |
| 2024-03-17 | Shamrock'n Half Marathon 2024 | Half Marathon | 2:25:54 | 1736 |
| 2023-09-30 | Urban Cow Half Marathon 2023 | Half Marathon | 2:47:48 | 2081 |
| 2023-03-12 | Shamrock'n Half Marathon 2023 | Half Marathon | 2:01:33 | 629 |