| Difficult Run to Farmersville (California) | 2,278.41 mi (3,666.74 km) |
| Difficult Run to Farmington (Michigan) | 400.28 mi (644.18 km) |
| Difficult Run to Farmington (Minnesota) | 904.93 mi (1,456.35 km) |
| Difficult Run to Farmington (Missouri) | 712.47 mi (1,146.61 km) |
| Difficult Run to Farmington (New Mexico) | 1,681.28 mi (2,705.77 km) |
| Difficult Run to Farmington (Utah) | 1,824.41 mi (2,936.10 km) |
| Difficult Run to Farmington Hills (Michigan) | 401.22 mi (645.70 km) |
| Difficult Run to Farmingville (New York) | 264.67 mi (425.95 km) |
| Difficult Run to Farragut (Tennessee) | 429.45 mi (691.14 km) |
| Difficult Run to Fate (Texas) | 1,139.31 mi (1,833.55 km) |
| Difficult Run to Fayetteville (Arkansas) | 941.15 mi (1,514.64 km) |
| Difficult Run to Fayetteville (Georgia) | 547.13 mi (880.53 km) |
| Difficult Run to Fayetteville (North Carolina) | 278.61 mi (448.38 km) |
| Difficult Run to Federal Heights (Colorado) | 1,473.18 mi (2,370.85 km) |
| Difficult Run to Federal Way (Washington) | 2,308.24 mi (3,714.75 km) |
