| Jan Grajkowski's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Never Summer 60k (2025) | Colorado, US | 35 | Friday, July 25, 2025 | 09:37:57.00 |
| Red Feather Trail Jamboree 2023 50K (50K) | Colorado, US | 33 | Friday, September 22, 2023 | 07:14:33.00 |
| Jan Grajkowski's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Never Summer 60k (2025) | Colorado, US | 35 | Friday, July 25, 2025 | 09:37:57.00 |
| Red Feather Trail Jamboree 2023 50K (50K) | Colorado, US | 33 | Friday, September 22, 2023 | 07:14:33.00 |