Gary DeGroff has 2 recorded races from Glastonbury, Connecticut, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-10-11 | Eversource Hartford Marathon Half Marathon | Half Marathon | 2:08:34 | 1922 |
| 2023-10-14 | Eversource Hartford Marathon 2023 Half Marathon | Half Marathon | 2:04:05 | 1530 |