Alyda Koster has 2 recorded races from Fort Eustis, Virginia, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2026-03-21 | 2026 Yuengling Shamrock Marathon Weekend Half Marathon | Half Marathon | 2:37:11 | 4406 |
| 2026-03-21 | 2026 Yuengling Shamrock Marathon Weekend 8K | 53:01 | 2370 |