Mary Dempsey has 3 recorded races from Middletown, Delaware, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-03-15 | 2025 Yuengling Shamrock Marathon Weekend 8K | 1:37:08 | 6331 | |
| 2024-03-16 | 2024 Yuengling Shamrock Marathon Weekend 8K | 1:42:22 | 6278 | |
| 2023-03-17 | 2023 Yuengling Shamrock Marathon Weekend Townebank 8K | 1:48:23 | 5802 |