| Difficult Run to Mombris | 4,090.94 mi (6,583.73 km) |
| Difficult Run to Monchengladbach | 3,949.62 mi (6,356.30 km) |
| Difficult Run to Monschau | 3,959.87 mi (6,372.80 km) |
| Difficult Run to Montabaur | 4,026.41 mi (6,479.89 km) |
| Difficult Run to Moosburg | 4,251.88 mi (6,842.75 km) |
| Difficult Run to Morbach | 4,015.37 mi (6,462.11 km) |
| Difficult Run to Morfelden-Walldorf | 4,069.45 mi (6,549.15 km) |
| Difficult Run to Morlenbach | 4,087.41 mi (6,578.05 km) |
| Difficult Run to Morsbach | 4,009.94 mi (6,453.37 km) |
| Difficult Run to Mosbach | 4,111.35 mi (6,616.58 km) |
| Difficult Run to Mosigkau | 4,158.14 mi (6,691.88 km) |
| Difficult Run to Mossingen | 4,136.22 mi (6,656.61 km) |
| Difficult Run to Much | 3,995.92 mi (6,430.81 km) |
| Difficult Run to Mucheln | 4,157.74 mi (6,691.24 km) |
| Difficult Run to Muhlacker | 4,110.87 mi (6,615.81 km) |
