| Potomac Park to Borgosatollo | 6,015.69 mi (9,681.33 km) |
| Potomac Park to Borgosesia | 5,941.72 mi (9,562.27 km) |
| Potomac Park to Boscoreale | 6,403.84 mi (10,305.99 km) |
| Potomac Park to Boscotrecase | 6,402.40 mi (10,303.67 km) |
| Potomac Park to Botticino Sera | 6,012.43 mi (9,676.07 km) |
| Potomac Park to Bovalino Marina | 6,602.98 mi (10,626.48 km) |
| Potomac Park to Boves | 5,991.17 mi (9,641.86 km) |
| Potomac Park to Boville Ernica | 6,323.33 mi (10,176.42 km) |
| Potomac Park to Bovisio Masciago | 5,974.57 mi (9,615.15 km) |
| Potomac Park to Bovolone | 6,055.10 mi (9,744.75 km) |
| Potomac Park to Bra | 5,981.72 mi (9,626.64 km) |
| Potomac Park to Bracciano | 6,258.50 mi (10,072.08 km) |
| Potomac Park to Brandizzo | 5,956.43 mi (9,585.94 km) |
| Potomac Park to Breganze | 6,043.84 mi (9,726.61 km) |
| Potomac Park to Brembate | 5,987.85 mi (9,636.52 km) |
