| Difficult Run to Coswig | 4,164.26 mi (6,701.73 km) |
| Difficult Run to Cottbus | 4,240.46 mi (6,824.36 km) |
| Difficult Run to Crailsheim | 4,155.40 mi (6,687.47 km) |
| Difficult Run to Cremlingen | 4,085.21 mi (6,574.52 km) |
| Difficult Run to Crimmitschau | 4,195.44 mi (6,751.92 km) |
| Difficult Run to Cuxhaven | 3,965.64 mi (6,382.08 km) |
| Difficult Run to Dachau | 4,238.20 mi (6,820.72 km) |
| Difficult Run to Dallgow-Doberitz | 4,167.72 mi (6,707.29 km) |
| Difficult Run to Damme | 3,983.05 mi (6,410.09 km) |
| Difficult Run to Darmstadt | 4,075.98 mi (6,559.66 km) |
| Difficult Run to Dassel | 4,060.96 mi (6,535.48 km) |
| Difficult Run to Datteln | 3,973.30 mi (6,394.41 km) |
| Difficult Run to Dautphe | 4,043.32 mi (6,507.10 km) |
| Difficult Run to Deggendorf | 4,281.68 mi (6,890.71 km) |
| Difficult Run to Delbruck | 4,018.23 mi (6,466.72 km) |
