| Difficult Run to Lubbeek | 3,894.19 mi (6,267.10 km) |
| Difficult Run to Lummen | 3,905.99 mi (6,286.08 km) |
| Difficult Run to Maaseik | 3,926.36 mi (6,318.87 km) |
| Difficult Run to Machelen | 3,877.10 mi (6,239.60 km) |
| Difficult Run to Maldegem | 3,829.22 mi (6,162.54 km) |
| Difficult Run to Malmedy | 3,954.09 mi (6,363.49 km) |
| Difficult Run to Manage | 3,879.45 mi (6,243.38 km) |
| Difficult Run to Marche-en-Famenne | 3,931.74 mi (6,327.53 km) |
| Difficult Run to Mariakerke | 3,842.22 mi (6,183.45 km) |
| Difficult Run to Mechelen | 3,875.85 mi (6,237.58 km) |
| Difficult Run to Mechelen-aan-de-Maas | 3,925.83 mi (6,318.01 km) |
| Difficult Run to Meerhout | 3,897.37 mi (6,272.22 km) |
| Difficult Run to Meise | 3,872.33 mi (6,231.92 km) |
| Difficult Run to Melle | 3,849.06 mi (6,194.47 km) |
| Difficult Run to Melsele | 3,862.89 mi (6,216.72 km) |
