| Difficult Run to Haines City (Florida) | 784.85 mi (1,263.10 km) |
| Difficult Run to Halawa (Hawaii) | 4,812.99 mi (7,745.75 km) |
| Difficult Run to Half Moon Bay (California) | 2,425.65 mi (3,903.70 km) |
| Difficult Run to Halfway (Maryland) | 54.32 mi (87.42 km) |
| Difficult Run to Hallandale Beach (Florida) | 907.05 mi (1,459.75 km) |
| Difficult Run to Haltom City (Texas) | 1,189.15 mi (1,913.74 km) |
| Difficult Run to Ham Lake (Minnesota) | 921.80 mi (1,483.49 km) |
| Difficult Run to Hamilton (Ohio) | 388.16 mi (624.69 km) |
| Difficult Run to Hamilton Square (New Jersey) | 170.16 mi (273.84 km) |
| Difficult Run to Hammond (Indiana) | 566.38 mi (911.49 km) |
| Difficult Run to Hammond (Louisiana) | 942.20 mi (1,516.33 km) |
| Difficult Run to Hammonton (New Jersey) | 147.49 mi (237.36 km) |
| Difficult Run to Hampton (Virginia) | 138.38 mi (222.70 km) |
| Difficult Run to Hampton Bays (New York) | 289.62 mi (466.09 km) |
| Difficult Run to Hamtramck (Michigan) | 384.34 mi (618.53 km) |
