Margaret Collins has 2 recorded races from Chicago, Illinois, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-09-28 | 2025 Life Time Chicago Half Marathon + 5K | Half Marathon | 3:12:04 | 8480 |
| 2023-09-24 | Life Time Chicago Half Marathon + 5K presented by HOKA | Half Marathon | 2:36:59 | 5784 |