Riley Horn has 3 recorded races from Southern California.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-11-08 | 2025 REVEL Big Bear Half Marathon | Half Marathon | 1:22:31 | 62 |
| 2025-09-13 | 2025 REVEL Big Cottonwood Marathon | Marathon | 3:10:33 | 68 |
| 2025-04-05 | 2025 REVEL Mt Charleston Marathon | Marathon | 3:23:18 | 836 |