| Difficult Run to Newtown | 3,527.50 mi (5,676.97 km) |
| Difficult Run to Normanton | 3,580.61 mi (5,762.44 km) |
| Difficult Run to North Hykeham | 3,623.46 mi (5,831.39 km) |
| Difficult Run to North Shields | 3,554.96 mi (5,721.16 km) |
| Difficult Run to North Tidworth | 3,620.44 mi (5,826.53 km) |
| Difficult Run to North Walsham | 3,709.23 mi (5,969.43 km) |
| Difficult Run to Northallerton | 3,567.95 mi (5,742.07 km) |
| Difficult Run to Northampton | 3,630.90 mi (5,843.37 km) |
| Difficult Run to Northenden | 3,552.90 mi (5,717.85 km) |
| Difficult Run to Northfield | 3,584.13 mi (5,768.11 km) |
| Difficult Run to Northfleet | 3,698.07 mi (5,951.46 km) |
| Difficult Run to Northolt | 3,666.77 mi (5,901.10 km) |
| Difficult Run to Northwich | 3,545.39 mi (5,705.76 km) |
| Difficult Run to Northwood | 3,663.65 mi (5,896.07 km) |
| Difficult Run to Norton | 3,567.63 mi (5,741.55 km) |
