| Difficult Run to Ilawa | 4,371.25 mi (7,034.85 km) |
| Difficult Run to Imielin | 4,480.75 mi (7,211.06 km) |
| Difficult Run to Inowroclaw | 4,352.06 mi (7,003.96 km) |
| Difficult Run to Janow Lubelski | 4,578.44 mi (7,368.28 km) |
| Difficult Run to Jarocin | 4,352.31 mi (7,004.36 km) |
| Difficult Run to Jaroslaw | 4,614.61 mi (7,426.49 km) |
| Difficult Run to Jasien | 4,310.33 mi (6,936.81 km) |
| Difficult Run to Jaslo | 4,579.83 mi (7,370.52 km) |
| Difficult Run to Jastrzebie-Zdroj | 4,463.26 mi (7,182.92 km) |
| Difficult Run to Jawor | 4,334.54 mi (6,975.77 km) |
| Difficult Run to Jaworzno | 4,480.20 mi (7,210.19 km) |
| Difficult Run to Jedrzejow | 4,503.32 mi (7,247.39 km) |
| Difficult Run to Jelcz-Laskowice | 4,377.98 mi (7,045.68 km) |
| Difficult Run to Jelenia Gora | 4,321.73 mi (6,955.16 km) |
| Difficult Run to Jozefoslaw | 4,477.35 mi (7,205.59 km) |
