David Kopstain has 7 recorded races from Springfield, Missouri, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2026-05-17 | 2026 Life Time Chicago Spring Half Marathon & 5K | Half Marathon | 2:17:10 | 3422 |
| 2025-09-28 | 2025 Life Time Chicago Half Marathon + 5K | Half Marathon | 2:27:03 | 5575 |
| 2025-05-18 | 2025 Life Time Chicago Spring Half & 10K Half Marathon | Half Marathon | 2:09:04 | 2705 |
| 2024-09-29 | 2024 Life Time Chicago Half Marathon + 5K | Half Marathon | 2:20:51 | 4528 |
| 2024-05-19 | 2024 Life Time Chicago Spring Half & 10K Half Marathon | Half Marathon | 2:19:32 | 3195 |
| 2023-09-24 | Life Time Chicago Half Marathon + 5K presented by HOKA | Half Marathon | 2:38:40 | 5875 |
| 2023-05-21 | Life Time Chicago Spring Half & 10K Half Marathon | Half Marathon | 2:45:09 | 4208 |