| Difficult Run to Bierun | 4,476.33 mi (7,203.96 km) |
| Difficult Run to Bierun Stary | 4,477.62 mi (7,206.03 km) |
| Difficult Run to Bilgoraj | 4,596.36 mi (7,397.12 km) |
| Difficult Run to Biskupiec | 4,411.10 mi (7,098.99 km) |
| Difficult Run to Blachownia | 4,448.11 mi (7,158.55 km) |
| Difficult Run to Blonie | 4,458.23 mi (7,174.83 km) |
| Difficult Run to Bochnia | 4,532.09 mi (7,293.70 km) |
| Difficult Run to Bogatynia | 4,291.88 mi (6,907.12 km) |
| Difficult Run to Boguszow-Gorce | 4,344.08 mi (6,991.12 km) |
| Difficult Run to Boleslawiec | 4,303.28 mi (6,925.46 km) |
| Difficult Run to Braniewo | 4,353.46 mi (7,006.21 km) |
| Difficult Run to Brodnica | 4,376.88 mi (7,043.90 km) |
| Difficult Run to Brwinow | 4,463.95 mi (7,184.03 km) |
| Difficult Run to Brzeg | 4,389.38 mi (7,064.02 km) |
| Difficult Run to Brzeg Dolny | 4,346.80 mi (6,995.49 km) |
