Jon Zylka has 5 recorded races from Maple Grove, Minnesota, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-09-13 | 2025 Life Time Chequamegon MTB Festival Chequamegon 40 | Ultra Marathon | 3:48:52 | 770 |
| 2024-09-14 | 2024 Life Time Chequamegon MTB Festival presented by Trek Chequamegon 40 | Ultra Marathon | 3:47:07 | 861 |
| 2024-06-29 | 2024 Life Time Lutsen 99er Lutsen45er | Ultra Marathon | 5:02:23 | 199 |
| 2023-09-16 | 2023 Life Time Chequamegon MTB Festival presented by Trek Chequamegon 40 | Ultra Marathon | 4:24:32 | 1125 |
| 2023-06-24 | 2023 Stages Cycling Lutsen 99er Lutsen49er | Ultra Marathon | 6:03:11 | 375 |