Jeff Simpson has 4 recorded races from Las Vegas, NV, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2026-02-22 | 2026 Rock 'n' Roll Las Vegas Half Marathon | Half Marathon | 3:41:06 | 11724 |
| 2025-02-23 | 2025 Rock 'n' Roll Las Vegas Half Marathon | Half Marathon | 3:45:52 | 11684 |
| 2024-02-25 | 2024 Rock 'n' Roll Las Vegas Half Marathon | Half Marathon | 4:01:58 | 11835 |
| 2023-02-26 | 2023 Rock 'n' Roll Las Vegas Half Marathon | Half Marathon | 3:59:08 | 11675 |