Christine Billings has 2 recorded races from Castle Rock, CO, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2026-02-22 | 2026 Rock 'n' Roll Las Vegas Half Marathon | Half Marathon | 2:56:15 | 9414 |
| 2025-02-23 | 2025 Rock 'n' Roll Las Vegas Half Marathon | Half Marathon | 2:48:46 | 8367 |