Sidney Harris has 4 recorded races from Irvine, California, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-07-19 | 2025 Life Time Tahoe Trail Tahoe Trail 50K MTB | 3:41:02 | 124 | |
| 2024-07-20 | 2024 Life Time Tahoe Trail Tahoe Trail 50K | Ultra Marathon | 3:54:34 | 143 |
| 2023-07-15 | 2023 Stages Cycling Tahoe Trail Tahoe Trail 50K | Ultra Marathon | 3:39:19 | 100 |
| 2023-07-15 | 2023 Stages Cycling Tahoe Trail Tahoe Trail 50K | Ultra Marathon | 3:39:19 | 100 |