Gary Flack has 2 recorded races from Manhattan, Kansas, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2026-05-23 | 12th Annual Bill Snyder Highway Half & 5K Half Marathon | Half Marathon | 1:40:48 | 115 |
| 2025-05-24 | 11th Annual Bill Snyder Highway Half & 5K Half Marathon | Half Marathon | 1:51:18 | 193 |