| Difficult Run to Karditsa | 5,006.11 mi (8,056.56 km) |
| Difficult Run to Kastoria | 4,931.53 mi (7,936.53 km) |
| Difficult Run to Katerini | 4,994.17 mi (8,037.33 km) |
| Difficult Run to Keratsini | 5,137.53 mi (8,268.06 km) |
| Difficult Run to Kerkyra | 4,909.45 mi (7,900.99 km) |
| Difficult Run to Kiato | 5,098.13 mi (8,204.64 km) |
| Difficult Run to Kifisia | 5,141.26 mi (8,274.05 km) |
| Difficult Run to Kilkis | 4,980.27 mi (8,014.97 km) |
| Difficult Run to Komotini | 5,081.49 mi (8,177.86 km) |
| Difficult Run to Korinthos | 5,108.84 mi (8,221.88 km) |
| Difficult Run to Koropi | 5,151.43 mi (8,290.42 km) |
| Difficult Run to Korydallos | 5,138.27 mi (8,269.25 km) |
| Difficult Run to Kos | 5,340.90 mi (8,595.35 km) |
| Difficult Run to Kozani | 4,962.33 mi (7,986.10 km) |
| Difficult Run to Lagos | 5,066.72 mi (8,154.10 km) |
