| Difficult Run to Zambrow | 4,488.05 mi (7,222.82 km) |
| Difficult Run to Zamosc | 4,608.99 mi (7,417.46 km) |
| Difficult Run to Zary | 4,274.82 mi (6,879.66 km) |
| Difficult Run to Zawiercie | 4,475.11 mi (7,201.99 km) |
| Difficult Run to Zdunska Wola | 4,419.26 mi (7,112.11 km) |
| Difficult Run to Zdzieszowice | 4,429.19 mi (7,128.09 km) |
| Difficult Run to Zgierz | 4,427.01 mi (7,124.59 km) |
| Difficult Run to Zgorzelec | 4,285.87 mi (6,897.44 km) |
| Difficult Run to Ziebice | 4,381.50 mi (7,051.34 km) |
| Difficult Run to Zielona Gora | 4,278.84 mi (6,886.12 km) |
| Difficult Run to Zielonka | 4,474.12 mi (7,200.41 km) |
| Difficult Run to Zlocieniec | 4,246.00 mi (6,833.28 km) |
| Difficult Run to Zlotoryja | 4,321.00 mi (6,953.98 km) |
| Difficult Run to Zlotow | 4,288.75 mi (6,902.07 km) |
| Difficult Run to Znin | 4,329.72 mi (6,968.02 km) |
