| Difficult Run to Alcorcon | 3,793.73 mi (6,105.41 km) |
| Difficult Run to Alcoy | 4,004.41 mi (6,444.48 km) |
| Difficult Run to Alcudia | 4,139.32 mi (6,661.58 km) |
| Difficult Run to Aldaya | 3,981.42 mi (6,407.47 km) |
| Difficult Run to Alella | 4,049.51 mi (6,517.05 km) |
| Difficult Run to Alfafar | 3,986.14 mi (6,415.08 km) |
| Difficult Run to Alfaro | 3,840.97 mi (6,181.44 km) |
| Difficult Run to Algeciras | 3,838.52 mi (6,177.51 km) |
| Difficult Run to Algemesi | 3,991.00 mi (6,422.89 km) |
| Difficult Run to Algete | 3,802.67 mi (6,119.80 km) |
| Difficult Run to Alginet | 3,987.30 mi (6,416.94 km) |
| Difficult Run to Alguazas | 3,987.27 mi (6,416.89 km) |
| Difficult Run to Alhama de Murcia | 3,984.47 mi (6,412.38 km) |
| Difficult Run to Alhaurin de la Torre | 3,867.15 mi (6,223.57 km) |
| Difficult Run to Alhaurin el Grande | 3,861.56 mi (6,214.57 km) |
