| Difficult Run to Montigny-les-Metz | 3,996.10 mi (6,431.10 km) |
| Difficult Run to Montivilliers | 3,735.67 mi (6,011.98 km) |
| Difficult Run to Montlouis-sur-Loire | 3,816.68 mi (6,142.35 km) |
| Difficult Run to Montlucon | 3,922.08 mi (6,311.98 km) |
| Difficult Run to Montmagny | 3,840.68 mi (6,180.97 km) |
| Difficult Run to Montmorency | 3,839.27 mi (6,178.71 km) |
| Difficult Run to Montpellier | 4,057.58 mi (6,530.04 km) |
| Difficult Run to Montreuil | 3,847.70 mi (6,192.27 km) |
| Difficult Run to Montrouge | 3,843.70 mi (6,185.84 km) |
| Difficult Run to Morangis | 3,847.11 mi (6,191.32 km) |
| Difficult Run to Morieres-les-Avignon | 4,093.64 mi (6,588.08 km) |
| Difficult Run to Morlaix | 3,586.31 mi (5,771.61 km) |
| Difficult Run to Morsang-sur-Orge | 3,848.75 mi (6,193.96 km) |
| Difficult Run to Mouans-Sartoux | 4,195.71 mi (6,752.34 km) |
| Difficult Run to Mougins | 4,197.36 mi (6,754.99 km) |
