David Sem 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 | 2:21:20 | 4912 |
| 2024-09-29 | 2024 Life Time Chicago Half Marathon + 5K | Half Marathon | 2:35:10 | 5745 |