| Difficult Run to Burnley | 3,546.17 mi (5,707.01 km) |
| Difficult Run to Burntwood | 3,580.40 mi (5,762.09 km) |
| Difficult Run to Burscough | 3,526.26 mi (5,674.97 km) |
| Difficult Run to Burslem | 3,562.66 mi (5,733.55 km) |
| Difficult Run to Burton upon Trent | 3,589.39 mi (5,776.57 km) |
| Difficult Run to Burtonwood | 3,536.50 mi (5,691.45 km) |
| Difficult Run to Bury | 3,547.85 mi (5,709.71 km) |
| Difficult Run to Bury Saint Edmunds | 3,695.35 mi (5,947.08 km) |
| Difficult Run to Bushey | 3,665.06 mi (5,898.35 km) |
| Difficult Run to Buxton | 3,569.51 mi (5,744.57 km) |
| Difficult Run to Caerdydd | 3,553.00 mi (5,718.00 km) |
| Difficult Run to Caerfyrddin | 3,499.00 mi (5,631.10 km) |
| Difficult Run to Caernarfon | 3,477.60 mi (5,596.65 km) |
| Difficult Run to Caerphilly | 3,549.49 mi (5,712.35 km) |
| Difficult Run to Caister-on-Sea | 3,726.77 mi (5,997.66 km) |
