| Difficult Run to Mouscron | 3,832.08 mi (6,167.14 km) |
| Difficult Run to Namur | 3,906.10 mi (6,286.26 km) |
| Difficult Run to Neder-Over-Heembeek | 3,875.21 mi (6,236.55 km) |
| Difficult Run to Neerpelt | 3,908.79 mi (6,290.59 km) |
| Difficult Run to Nevele | 3,838.10 mi (6,176.83 km) |
| Difficult Run to Niel | 3,867.63 mi (6,224.36 km) |
| Difficult Run to Nieuwpoort | 3,803.62 mi (6,121.33 km) |
| Difficult Run to Nijlen | 3,879.10 mi (6,242.81 km) |
| Difficult Run to Ninove | 3,862.08 mi (6,215.41 km) |
| Difficult Run to Nivelles | 3,880.69 mi (6,245.37 km) |
| Difficult Run to Olen | 3,887.57 mi (6,256.44 km) |
| Difficult Run to Oostakker | 3,845.19 mi (6,188.24 km) |
| Difficult Run to Oosterzele | 3,850.33 mi (6,196.50 km) |
| Difficult Run to Oostkamp | 3,822.35 mi (6,151.48 km) |
| Difficult Run to Opglabbeek | 3,919.63 mi (6,308.04 km) |
