| Difficult Run to Bagnolet | 3,846.42 mi (6,190.21 km) |
| Difficult Run to Bagnols-sur-Ceze | 4,074.24 mi (6,556.86 km) |
| Difficult Run to Bailleul | 3,812.28 mi (6,135.28 km) |
| Difficult Run to Balma | 3,950.02 mi (6,356.95 km) |
| Difficult Run to Bar-le-Duc | 3,964.31 mi (6,379.94 km) |
| Difficult Run to Barentin | 3,767.87 mi (6,063.81 km) |
| Difficult Run to Basse-Goulaine | 3,721.04 mi (5,988.43 km) |
| Difficult Run to Bastia | 4,335.79 mi (6,977.78 km) |
| Difficult Run to Bayeux | 3,704.33 mi (5,961.54 km) |
| Difficult Run to Bayonne | 3,817.12 mi (6,143.06 km) |
| Difficult Run to Beaucaire | 4,086.06 mi (6,575.87 km) |
| Difficult Run to Beauchamp | 3,833.09 mi (6,168.76 km) |
| Difficult Run to Beaumont | 3,959.63 mi (6,372.41 km) |
| Difficult Run to Beaumont-sur-Oise | 3,833.85 mi (6,169.98 km) |
| Difficult Run to Beaune | 3,999.64 mi (6,436.79 km) |
