| Difficult Run to Adel | 3,571.08 mi (5,747.09 km) |
| Difficult Run to Adwick le Street | 3,591.89 mi (5,780.58 km) |
| Difficult Run to Ainsdale | 3,518.34 mi (5,662.21 km) |
| Difficult Run to Airdrie | 3,444.36 mi (5,543.17 km) |
| Difficult Run to Aldenham | 3,664.66 mi (5,897.70 km) |
| Difficult Run to Aldershot | 3,657.29 mi (5,885.85 km) |
| Difficult Run to Aldridge | 3,582.01 mi (5,764.68 km) |
| Difficult Run to Alfreton | 3,593.77 mi (5,783.61 km) |
| Difficult Run to Allestree | 3,592.44 mi (5,781.48 km) |
| Difficult Run to Alloa | 3,447.54 mi (5,548.27 km) |
| Difficult Run to Almondbury | 3,568.72 mi (5,743.30 km) |
| Difficult Run to Alsager | 3,556.97 mi (5,724.39 km) |
| Difficult Run to Alton | 3,650.59 mi (5,875.05 km) |
| Difficult Run to Altrincham | 3,549.53 mi (5,712.42 km) |
| Difficult Run to Amblecote | 3,575.15 mi (5,753.65 km) |
