Matthew Harrison has 5 recorded races from Southern California.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-11-08 | 2025 REVEL Big Bear Half Marathon | Half Marathon | 2:10:51 | 1095 |
| 2024-11-16 | 2024 REVEL Big Bear Half Marathon | Half Marathon | 2:50:01 | 2895 |
| 2023-11-18 | 2023 REVEL Big Bear Half Marathon | Half Marathon | 2:29:31 | 1025 |
| 2023-09-09 | 2022 REVEL Big Cottonwood Half Marathon | Half Marathon | 2:28:56 | 2208 |
| 2022-11-12 | 2022 REVEL Big Bear Half Marathon | Half Marathon | 3:29:33 | 1210 |