| Difficult Run to Melun | 3,865.19 mi (6,220.42 km) |
| Difficult Run to Mende | 4,013.73 mi (6,459.48 km) |
| Difficult Run to Mennecy | 3,855.07 mi (6,204.13 km) |
| Difficult Run to Menton | 4,214.16 mi (6,782.04 km) |
| Difficult Run to Mericourt | 3,826.03 mi (6,157.39 km) |
| Difficult Run to Merignac | 3,818.75 mi (6,145.69 km) |
| Difficult Run to Meru | 3,825.12 mi (6,155.93 km) |
| Difficult Run to Merville | 3,810.77 mi (6,132.84 km) |
| Difficult Run to Mery-sur-Oise | 3,831.66 mi (6,166.47 km) |
| Difficult Run to Metz | 3,996.53 mi (6,431.80 km) |
| Difficult Run to Meudon | 3,840.30 mi (6,180.36 km) |
| Difficult Run to Meylan | 4,093.82 mi (6,588.37 km) |
| Difficult Run to Meyzieu | 4,043.27 mi (6,507.01 km) |
| Difficult Run to Meze | 4,050.90 mi (6,519.29 km) |
| Difficult Run to Millau | 4,007.17 mi (6,448.92 km) |
