Matthew O'Brien has 3 recorded races from Chicago, Illinois, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2023-03-17 | 2023 Yuengling Shamrock Marathon Weekend Half Marathon | Half Marathon | 2:50:25 | 4277 |
| 2023-01-14 | Frozen Gnome 50K/10K | Ultra Marathon | 6:03:59 | 19 |
| 2022-11-24 | Life Time Turkey Trot Chicago 5K & 8K Turkey Trot 5K | 5K | 37:04 | 2239 |