Joshua Wittenberg has 4 recorded races from Lake Barrington, Illinois, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-09-13 | 2025 Life Time Chequamegon MTB Festival Chequamegon 40 | Ultra Marathon | 3:14:44 | 387 |
| 2024-09-14 | 2024 Life Time Chequamegon MTB Festival presented by Trek Chequamegon 40 | Ultra Marathon | 3:00:29 | 270 |
| 2023-09-16 | 2023 Life Time Chequamegon MTB Festival presented by Trek Chequamegon 40 | Ultra Marathon | 2:59:39 | 184 |
| 2022-09-17 | 2022 Chequamegon MTB Festival Chequamegon 40 | Ultra Marathon | 2:57:17 | 249 |