Gregory Williamson has 2 recorded races from Norfolk, Virginia, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-10-04 | 2025 Sentara Crawlin' Crab Half Marathon Weekend | Half Marathon | 2:27:10 | 618 |
| 2025-03-15 | 2025 Yuengling Shamrock Marathon Weekend Half Marathon | Half Marathon | 2:24:55 | 3289 |