| Difficult Run to Grovetown (Georgia) | 463.88 mi (746.54 km) |
| Difficult Run to Guayama (Puerto Rico) | 1,595.83 mi (2,568.23 km) |
| Difficult Run to Guaynabo (Puerto Rico) | 1,569.73 mi (2,526.23 km) |
| Difficult Run to Gulf Shores (Alabama) | 836.75 mi (1,346.61 km) |
| Difficult Run to Gulfport (Florida) | 830.18 mi (1,336.05 km) |
| Difficult Run to Gulfport (Mississippi) | 885.55 mi (1,425.16 km) |
| Difficult Run to Gunbarrel (Colorado) | 1,479.93 mi (2,381.71 km) |
| Difficult Run to Gurnee (Illinois) | 604.33 mi (972.57 km) |
| Difficult Run to Guthrie (Oklahoma) | 1,120.75 mi (1,803.68 km) |
| Difficult Run to Guttenberg (New Jersey) | 220.22 mi (354.40 km) |
| Difficult Run to Guymon (Oklahoma) | 1,322.38 mi (2,128.17 km) |
| Difficult Run to Hacienda Heights (California) | 2,264.32 mi (3,644.07 km) |
| Difficult Run to Hackensack (New Jersey) | 222.40 mi (357.92 km) |
| Difficult Run to Hackettstown (New Jersey) | 189.91 mi (305.63 km) |
| Difficult Run to Hagerstown (Maryland) | 54.82 mi (88.22 km) |
