| Difficult Run to Fareham | 3,648.75 mi (5,872.10 km) |
| Difficult Run to Farnborough | 3,689.04 mi (5,936.93 km) |
| Difficult Run to Farnborough | 3,656.85 mi (5,885.13 km) |
| Difficult Run to Farnham | 3,656.48 mi (5,884.53 km) |
| Difficult Run to Farnley | 3,571.03 mi (5,747.01 km) |
| Difficult Run to Farnworth | 3,544.72 mi (5,704.67 km) |
| Difficult Run to Farsley | 3,568.38 mi (5,742.75 km) |
| Difficult Run to Faversham | 3,723.36 mi (5,992.17 km) |
| Difficult Run to Fazakerley | 3,524.73 mi (5,672.51 km) |
| Difficult Run to Featherstone | 3,582.36 mi (5,765.25 km) |
| Difficult Run to Felixstowe | 3,727.13 mi (5,998.23 km) |
| Difficult Run to Felling | 3,551.48 mi (5,715.55 km) |
| Difficult Run to Felpham | 3,671.83 mi (5,909.23 km) |
| Difficult Run to Feltham | 3,667.31 mi (5,901.97 km) |
| Difficult Run to Felton | 3,577.34 mi (5,757.17 km) |
