John Mcmahan has 4 recorded races from Chicago, Illinois, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2026-03-21 | 2026 Yuengling Shamrock Marathon Weekend Half Marathon | Half Marathon | 6:09:03 | 6326 |
| 2026-03-21 | 2026 Yuengling Shamrock Marathon Weekend 8K | 1:09:11 | 4818 | |
| 2025-05-18 | 2025 Life Time Chicago Spring Half & 10K | 10K | 1:09:59 | 910 |
| 2024-05-19 | 2024 Life Time Chicago Spring Half & 10K Half Marathon | Half Marathon | 2:16:30 | 2966 |