| Difficult Run to Kamen | 3,987.75 mi (6,417.66 km) |
| Difficult Run to Kamenz | 4,247.37 mi (6,835.48 km) |
| Difficult Run to Kamp-Lintfort | 3,945.53 mi (6,349.71 km) |
| Difficult Run to Kandel | 4,080.75 mi (6,567.34 km) |
| Difficult Run to Kappeln | 3,989.96 mi (6,421.22 km) |
| Difficult Run to Karben | 4,070.10 mi (6,550.20 km) |
| Difficult Run to Karlsdorf-Neuthard | 4,093.24 mi (6,587.44 km) |
| Difficult Run to Karlsfeld | 4,240.92 mi (6,825.10 km) |
| Difficult Run to Karlsruhe | 4,091.29 mi (6,584.30 km) |
| Difficult Run to Kassel | 4,067.54 mi (6,546.08 km) |
| Difficult Run to Kaufbeuren | 4,217.02 mi (6,786.64 km) |
| Difficult Run to Kaufering | 4,221.30 mi (6,793.53 km) |
| Difficult Run to Kaufungen | 4,073.28 mi (6,555.31 km) |
| Difficult Run to Kehl | 4,080.22 mi (6,566.47 km) |
| Difficult Run to Kelheim | 4,234.79 mi (6,815.23 km) |
