| Justin Grunewald's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Quad Rock 2022 (Quad Rock 25) | Minnesota, US | 36 | Saturday, May 7, 2022 | 03:19:45.00 |
| 2021 Silverton Ultra Dirty (60K) | Colorado, US | 35 | Saturday, August 7, 2021 | 06:08:42.00 |
| Justin Grunewald's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Quad Rock 2022 (Quad Rock 25) | Minnesota, US | 36 | Saturday, May 7, 2022 | 03:19:45.00 |
| 2021 Silverton Ultra Dirty (60K) | Colorado, US | 35 | Saturday, August 7, 2021 | 06:08:42.00 |