| Difficult Run to Wanaque (New Jersey) | 219.32 mi (352.96 km) |
| Difficult Run to Wantagh (New York) | 237.46 mi (382.15 km) |
| Difficult Run to Warner Robins (Georgia) | 560.77 mi (902.47 km) |
| Difficult Run to Warr Acres (Oklahoma) | 1,136.95 mi (1,829.75 km) |
| Difficult Run to Warren (Michigan) | 387.29 mi (623.28 km) |
| Difficult Run to Warren (Ohio) | 244.40 mi (393.32 km) |
| Difficult Run to Warrensburg (Missouri) | 880.42 mi (1,416.90 km) |
| Difficult Run to Warrensville Heights (Ohio) | 281.48 mi (452.99 km) |
| Difficult Run to Warrenville (Illinois) | 604.70 mi (973.18 km) |
| Difficult Run to Warrington (Florida) | 815.13 mi (1,311.82 km) |
| Difficult Run to Warsaw (Indiana) | 477.40 mi (768.30 km) |
| Difficult Run to Warwick (Rhode Island) | 366.81 mi (590.33 km) |
| Difficult Run to Wasco (California) | 2,302.00 mi (3,704.71 km) |
| Difficult Run to Washington (District of Columbia) | 17.79 mi (28.63 km) |
| Difficult Run to Washington (Illinois) | 653.01 mi (1,050.92 km) |
