| Difficult Run to Bitonto | 4,710.53 mi (7,580.86 km) |
| Difficult Run to Bitritto | 4,719.59 mi (7,595.44 km) |
| Difficult Run to Bollate | 4,227.81 mi (6,804.00 km) |
| Difficult Run to Bologna | 4,358.14 mi (7,013.76 km) |
| Difficult Run to Bolzano | 4,291.97 mi (6,907.25 km) |
| Difficult Run to Bomporto | 4,336.80 mi (6,979.40 km) |
| Difficult Run to Bonate di Sopra | 4,242.80 mi (6,828.13 km) |
| Difficult Run to Bondeno | 4,348.20 mi (6,997.75 km) |
| Difficult Run to Bordighera | 4,221.26 mi (6,793.47 km) |
| Difficult Run to Borgaro Torinese | 4,177.18 mi (6,722.52 km) |
| Difficult Run to Borgo a Buggiano | 4,352.38 mi (7,004.48 km) |
| Difficult Run to Borgo San Dalmazzo | 4,195.64 mi (6,752.24 km) |
| Difficult Run to Borgo San Lorenzo | 4,378.32 mi (7,046.23 km) |
| Difficult Run to Borgomanero | 4,195.15 mi (6,751.45 km) |
| Difficult Run to Borgoricco | 4,350.31 mi (7,001.14 km) |
