| Difficult Run to Kelkheim (Taunus) | 4,060.07 mi (6,534.05 km) |
| Difficult Run to Kelsterbach | 4,065.55 mi (6,542.87 km) |
| Difficult Run to Kemberg | 4,174.98 mi (6,718.99 km) |
| Difficult Run to Kempen | 3,944.61 mi (6,348.23 km) |
| Difficult Run to Kempten | 4,209.03 mi (6,773.79 km) |
| Difficult Run to Kenzingen | 4,089.31 mi (6,581.11 km) |
| Difficult Run to Kerpen | 3,969.03 mi (6,387.53 km) |
| Difficult Run to Ketsch | 4,086.04 mi (6,575.85 km) |
| Difficult Run to Kevelaer | 3,932.07 mi (6,328.06 km) |
| Difficult Run to Kiel | 4,006.90 mi (6,448.48 km) |
| Difficult Run to Kierspe | 3,996.53 mi (6,431.80 km) |
| Difficult Run to Kirchhain | 4,059.07 mi (6,532.44 km) |
| Difficult Run to Kirchheim bei Munchen | 4,253.99 mi (6,846.14 km) |
| Difficult Run to Kirchheim unter Teck | 4,145.02 mi (6,670.77 km) |
| Difficult Run to Kirchhundem | 4,017.95 mi (6,466.27 km) |
