Derek Simpson has 2 recorded races from Valencia, California, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2024-05-04 | The Ruck Challenge (TRC) 8th Annual 10K / 5K 5K Ruck Challenge or Run/Walk | 5K | 1:03:45 | 33 |
| 2023-05-20 | The Ruck Challenge (TRC) 7th Annual 10K / 5K 5K Ruck Challenge | 5K | 1:01:49 | 10 |