| Difficult Run to Kirchlengern | 4,008.70 mi (6,451.39 km) |
| Difficult Run to Kirchlinteln | 4,014.35 mi (6,460.47 km) |
| Difficult Run to Kirchseeon | 4,262.65 mi (6,860.07 km) |
| Difficult Run to Kirchzarten | 4,103.59 mi (6,604.09 km) |
| Difficult Run to Kirkel | 4,035.33 mi (6,494.24 km) |
| Difficult Run to Kissing | 4,218.53 mi (6,789.07 km) |
| Difficult Run to Kisslegg | 4,189.36 mi (6,742.12 km) |
| Difficult Run to Kitzingen | 4,141.03 mi (6,664.34 km) |
| Difficult Run to Kleinblittersdorf | 4,030.91 mi (6,487.12 km) |
| Difficult Run to Kleve | 3,922.25 mi (6,312.25 km) |
| Difficult Run to Klipphausen | 4,231.47 mi (6,809.89 km) |
| Difficult Run to Klotze | 4,093.52 mi (6,587.88 km) |
| Difficult Run to Koblenz | 4,019.46 mi (6,468.70 km) |
| Difficult Run to Kolbermoor | 4,277.27 mi (6,883.59 km) |
| Difficult Run to Kolkwitz | 4,237.46 mi (6,819.53 km) |
