| Difficult Run to Brandermill (Virginia) | 102.75 mi (165.35 km) |
| Difficult Run to Brandon (Florida) | 809.29 mi (1,302.43 km) |
| Difficult Run to Brandon (Mississippi) | 843.75 mi (1,357.89 km) |
| Difficult Run to Brandon (South Dakota) | 1,047.56 mi (1,685.89 km) |
| Difficult Run to Branson (Missouri) | 881.84 mi (1,419.19 km) |
| Difficult Run to Braselton (Georgia) | 488.22 mi (785.71 km) |
| Difficult Run to Brawley (California) | 2,158.57 mi (3,473.88 km) |
| Difficult Run to Brea (California) | 2,260.31 mi (3,637.62 km) |
| Difficult Run to Brecksville (Ohio) | 280.32 mi (451.13 km) |
| Difficult Run to Bremerton (Washington) | 2,325.20 mi (3,742.05 km) |
| Difficult Run to Brenham (Texas) | 1,237.60 mi (1,991.72 km) |
| Difficult Run to Brent (Florida) | 808.72 mi (1,301.51 km) |
| Difficult Run to Brentwood (California) | 2,378.90 mi (3,828.47 km) |
| Difficult Run to Brentwood (New York) | 253.15 mi (407.40 km) |
| Difficult Run to Brentwood (Tennessee) | 554.56 mi (892.48 km) |
