| Difficult Run to Bussum | 3,871.14 mi (6,229.99 km) |
| Difficult Run to Capelle aan den IJssel | 3,856.93 mi (6,207.12 km) |
| Difficult Run to Castricum | 3,844.82 mi (6,187.64 km) |
| Difficult Run to Coevorden | 3,923.09 mi (6,313.60 km) |
| Difficult Run to Cranendonck | 3,913.61 mi (6,298.35 km) |
| Difficult Run to Cuijk | 3,913.59 mi (6,298.32 km) |
| Difficult Run to Culemborg | 3,882.25 mi (6,247.88 km) |
| Difficult Run to Dalfsen | 3,908.00 mi (6,289.31 km) |
| Difficult Run to De Bilt | 3,876.68 mi (6,238.91 km) |
| Difficult Run to De Meern | 3,870.88 mi (6,229.57 km) |
| Difficult Run to Dedemsvaart | 3,913.83 mi (6,298.71 km) |
| Difficult Run to Delft | 3,846.07 mi (6,189.65 km) |
| Difficult Run to Delfzijl | 3,912.16 mi (6,296.01 km) |
| Difficult Run to Den Helder | 3,838.62 mi (6,177.66 km) |
| Difficult Run to Deurne | 3,917.29 mi (6,304.27 km) |
