James Zwiefel has 2 recorded races from Inver Grove Heights, Minnesota, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-09-13 | 2025 Life Time Chequamegon MTB Festival Chequamegon 40 | Ultra Marathon | 3:42:00 | 690 |
| 2025-06-28 | Life Time Lutsen 99er presented by Visit Cook County Lutsen99er | Ultra Marathon | 9:23:49 | 473 |