| Difficult Run to Ruislip | 3,663.57 mi (5,895.94 km) |
| Difficult Run to Runcorn | 3,535.27 mi (5,689.47 km) |
| Difficult Run to Rushall | 3,580.34 mi (5,761.99 km) |
| Difficult Run to Rushden | 3,641.48 mi (5,860.40 km) |
| Difficult Run to Rustington | 3,677.53 mi (5,918.41 km) |
| Difficult Run to Rutherglen | 3,435.99 mi (5,529.69 km) |
| Difficult Run to Ryde | 3,652.20 mi (5,877.65 km) |
| Difficult Run to Rye | 3,725.19 mi (5,995.11 km) |
| Difficult Run to Ryhope | 3,560.41 mi (5,729.93 km) |
| Difficult Run to Saffron Walden | 3,681.21 mi (5,924.33 km) |
| Difficult Run to Saint Albans | 3,663.61 mi (5,896.02 km) |
| Difficult Run to Saint Andrews | 3,481.42 mi (5,602.80 km) |
| Difficult Run to Saint Austell | 3,508.37 mi (5,646.18 km) |
| Difficult Run to Saint Budeaux | 3,532.62 mi (5,685.20 km) |
| Difficult Run to Saint Helens | 3,532.62 mi (5,685.21 km) |
