| Difficult Run to North Augusta (South Carolina) | 451.69 mi (726.93 km) |
| Difficult Run to North Aurora (Illinois) | 612.19 mi (985.23 km) |
| Difficult Run to North Babylon (New York) | 248.06 mi (399.21 km) |
| Difficult Run to North Bay Shore (New York) | 251.91 mi (405.41 km) |
| Difficult Run to North Bellmore (New York) | 236.91 mi (381.27 km) |
| Difficult Run to North Bellport (New York) | 267.32 mi (430.20 km) |
| Difficult Run to North Bend (Oregon) | 2,426.76 mi (3,905.50 km) |
| Difficult Run to North Bethesda (Maryland) | 15.51 mi (24.96 km) |
| Difficult Run to North Branch (Minnesota) | 918.12 mi (1,477.57 km) |
| Difficult Run to North Canton (Ohio) | 254.27 mi (409.21 km) |
| Difficult Run to North Charleston (South Carolina) | 441.33 mi (710.25 km) |
| Difficult Run to North Chicago (Illinois) | 599.25 mi (964.39 km) |
| Difficult Run to North Decatur (Georgia) | 522.28 mi (840.53 km) |
| Difficult Run to North Druid Hills (Georgia) | 523.24 mi (842.08 km) |
| Difficult Run to North Fair Oaks (California) | 2,413.17 mi (3,883.62 km) |
