| Difficult Run to Beausoleil | 4,211.84 mi (6,778.31 km) |
| Difficult Run to Beauvais | 3,818.53 mi (6,145.32 km) |
| Difficult Run to Begles | 3,823.89 mi (6,153.95 km) |
| Difficult Run to Belfort | 4,067.20 mi (6,545.53 km) |
| Difficult Run to Bellegarde-sur-Valserine | 4,068.87 mi (6,548.21 km) |
| Difficult Run to Bellerive-sur-Allier | 3,963.36 mi (6,378.42 km) |
| Difficult Run to Bellevue | 3,844.97 mi (6,187.89 km) |
| Difficult Run to Belley | 4,073.29 mi (6,555.32 km) |
| Difficult Run to Berck-sur-Mer | 3,773.49 mi (6,072.85 km) |
| Difficult Run to Bergerac | 3,869.06 mi (6,226.65 km) |
| Difficult Run to Bernay | 3,764.04 mi (6,057.64 km) |
| Difficult Run to Berre-l'Etang | 4,119.74 mi (6,630.08 km) |
| Difficult Run to Besancon | 4,043.82 mi (6,507.89 km) |
| Difficult Run to Bethune | 3,813.60 mi (6,137.40 km) |
| Difficult Run to Betton | 3,689.92 mi (5,938.35 km) |
