Brian Mcmahon has 5 recorded races from S Plainfield, -, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2026-03-21 | 2026 Yuengling Shamrock Marathon Weekend 8K | 51:59 | 2166 | |
| 2025-03-15 | 2025 Yuengling Shamrock Marathon Weekend 8K | 52:22 | 2152 | |
| 2024-03-16 | 2024 Yuengling Shamrock Marathon Weekend 8K | 53:21 | 2325 | |
| 2023-03-17 | 2023 Yuengling Shamrock Marathon Weekend Townebank 8K | 50:58 | 1718 | |
| 2022-03-19 | 2022 Yuengling Shamrock Marathon Weekend Townebank 8K | 46:44 | 1114 |