Mark Pierce has 5 recorded races from Southern California.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2023-11-18 | 2023 REVEL Big Bear Marathon | Marathon | 4:30:50 | 1463 |
| 2023-09-09 | 2022 REVEL Big Cottonwood Marathon | Marathon | 4:54:41 | 1316 |
| 2022-11-12 | 2022 REVEL Big Bear Marathon | Marathon | 4:04:37 | 1045 |
| 2022-06-04 | 2021 REVEL Rockies Marathon | Marathon | 4:24:40 | 456 |
| 2022-02-12 | 2022 Mesa Marathon | Marathon | 4:33:54 | 1309 |