Karsten Stein has 2 recorded races from Southern California.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2026-04-12 | Schneider Electric Marathon de Paris 2026 — Marathon de Paris | Marathon | 3:46:08 | 16624 |
| 2025-11-08 | 2025 REVEL Big Bear Half Marathon | Half Marathon | 1:47:14 | 530 |