| Difficult Run to Kluczbork | 4,412.94 mi (7,101.94 km) |
| Difficult Run to Knurow | 4,457.57 mi (7,173.76 km) |
| Difficult Run to Kobylka | 4,474.43 mi (7,200.90 km) |
| Difficult Run to Kokoszki | 4,307.45 mi (6,932.16 km) |
| Difficult Run to Kolbuszowa | 4,572.01 mi (7,357.95 km) |
| Difficult Run to Kolno | 4,461.33 mi (7,179.82 km) |
| Difficult Run to Kolo | 4,386.05 mi (7,058.66 km) |
| Difficult Run to Kolobrzeg | 4,209.51 mi (6,774.55 km) |
| Difficult Run to Koluszki | 4,444.61 mi (7,152.91 km) |
| Difficult Run to Komorniki | 4,312.57 mi (6,940.40 km) |
| Difficult Run to Konin | 4,372.03 mi (7,036.10 km) |
| Difficult Run to Konskie | 4,487.05 mi (7,221.21 km) |
| Difficult Run to Konstancin-Jeziorna | 4,480.51 mi (7,210.69 km) |
| Difficult Run to Konstantynow Lodzki | 4,427.48 mi (7,125.34 km) |
| Difficult Run to Koronowo | 4,322.44 mi (6,956.30 km) |
