Gregg Zastrow has 5 recorded races from Shoreview, Minnesota, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-09-13 | 2025 Life Time Chequamegon MTB Festival Short & Fat 16 | 1:19:08 | 194 | |
| 2024-09-14 | 2024 Life Time Chequamegon MTB Festival presented by Trek Short & Fat 16 | 1:32:26 | 426 | |
| 2023-09-16 | 2023 Life Time Chequamegon MTB Festival presented by Trek Chequamegon 40 | Ultra Marathon | 4:53:47 | 1265 |
| 2023-06-24 | 2023 Stages Cycling Lutsen 99er Lutsen25er | 2:34:25 | 84 | |
| 2022-09-17 | 2022 Chequamegon MTB Festival Short and Fat 16 | 1:24:29 | 179 |