Ron Marks has 4 recorded races from Chanhassen, Minnesota, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2024-09-14 | 2024 Life Time Chequamegon MTB Festival presented by Trek Chequamegon 40 | Ultra Marathon | 3:21:00 | 554 |
| 2023-09-16 | 2023 Life Time Chequamegon MTB Festival presented by Trek Chequamegon 40 | Ultra Marathon | 3:50:19 | 818 |
| 2022-09-17 | 2022 Chequamegon MTB Festival Chequamegon 40 | Ultra Marathon | 3:26:31 | 556 |
| 2022-06-25 | 2022 Lutsen 99er 49er | Ultra Marathon | 4:18:00 | 71 |