Zachary Marks has 2 recorded races from Littleton, Colorado, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-07-12 | 2025 Life Time Silver Rush Events Silver Rush 50 Run | Ultra Marathon | 11:29:36 | 266 |
| 2024-07-06 | 2024 Life Time Silver Rush Events Silver Rush 50 Run | Ultra Marathon | 10:44:15 | 160 |