| Difficult Run to Glenview (Illinois) | 592.12 mi (952.93 km) |
| Difficult Run to Gloucester (Massachusetts) | 432.90 mi (696.68 km) |
| Difficult Run to Gloucester City (New Jersey) | 137.33 mi (221.02 km) |
| Difficult Run to Gloucester Point (Virginia) | 121.26 mi (195.15 km) |
| Difficult Run to Gloversville (New York) | 326.47 mi (525.40 km) |
| Difficult Run to Godfrey (Illinois) | 691.10 mi (1,112.22 km) |
| Difficult Run to Gold Canyon (Arizona) | 1,928.00 mi (3,102.82 km) |
| Difficult Run to Golden (Colorado) | 1,484.52 mi (2,389.10 km) |
| Difficult Run to Golden Gate (Florida) | 914.24 mi (1,471.33 km) |
| Difficult Run to Golden Glades (Florida) | 912.60 mi (1,468.69 km) |
| Difficult Run to Golden Valley (Minnesota) | 921.90 mi (1,483.66 km) |
| Difficult Run to Goldenrod (Florida) | 746.00 mi (1,200.57 km) |
| Difficult Run to Goldsboro (North Carolina) | 245.89 mi (395.72 km) |
| Difficult Run to Goleta (California) | 2,354.79 mi (3,789.67 km) |
| Difficult Run to Gonzales (Louisiana) | 976.47 mi (1,571.47 km) |
