| Difficult Run to Koscian | 4,316.83 mi (6,947.27 km) |
| Difficult Run to Koscielisko | 4,536.95 mi (7,301.52 km) |
| Difficult Run to Koscierzyna | 4,297.43 mi (6,916.04 km) |
| Difficult Run to Kostrzyn | 4,327.58 mi (6,964.57 km) |
| Difficult Run to Kostrzyn nad Odra | 4,226.55 mi (6,801.97 km) |
| Difficult Run to Koszalin | 4,230.54 mi (6,808.40 km) |
| Difficult Run to Kowary | 4,329.24 mi (6,967.24 km) |
| Difficult Run to Kozienice | 4,515.11 mi (7,266.37 km) |
| Difficult Run to Kozuchow | 4,288.60 mi (6,901.84 km) |
| Difficult Run to Kozy | 4,487.81 mi (7,222.43 km) |
| Difficult Run to Krakow | 4,510.55 mi (7,259.03 km) |
| Difficult Run to Krapkowice | 4,421.58 mi (7,115.84 km) |
| Difficult Run to Krasnik | 4,563.59 mi (7,344.39 km) |
| Difficult Run to Krasnystaw | 4,596.29 mi (7,397.01 km) |
| Difficult Run to Krosno | 4,592.69 mi (7,391.23 km) |
