| Difficult Run to Darlaston | 3,577.57 mi (5,757.53 km) |
| Difficult Run to Darlington | 3,559.64 mi (5,728.68 km) |
| Difficult Run to Dartford | 3,693.18 mi (5,943.60 km) |
| Difficult Run to Darton | 3,578.19 mi (5,758.54 km) |
| Difficult Run to Darwen | 3,539.47 mi (5,696.23 km) |
| Difficult Run to Daventry | 3,619.48 mi (5,824.98 km) |
| Difficult Run to Davyhulme | 3,547.64 mi (5,709.37 km) |
| Difficult Run to Dawlish | 3,559.25 mi (5,728.06 km) |
| Difficult Run to Deal | 3,746.24 mi (6,029.00 km) |
| Difficult Run to Denby Dale | 3,573.61 mi (5,751.17 km) |
| Difficult Run to Denton | 3,557.78 mi (5,725.70 km) |
| Difficult Run to Derby | 3,593.40 mi (5,783.02 km) |
| Difficult Run to Derry | 3,327.69 mi (5,355.40 km) |
| Difficult Run to Desborough | 3,629.61 mi (5,841.29 km) |
| Difficult Run to Devizes | 3,604.35 mi (5,800.64 km) |
