| Difficult Run to Colton (California) | 2,228.23 mi (3,585.99 km) |
| Difficult Run to Columbia (Illinois) | 694.20 mi (1,117.20 km) |
| Difficult Run to Columbia (Maryland) | 33.35 mi (53.67 km) |
| Difficult Run to Columbia (Missouri) | 804.30 mi (1,294.40 km) |
| Difficult Run to Columbia (Pennsylvania) | 90.54 mi (145.71 km) |
| Difficult Run to Columbia (South Carolina) | 389.76 mi (627.27 km) |
| Difficult Run to Columbia (Tennessee) | 579.15 mi (932.05 km) |
| Difficult Run to Columbia Heights (Minnesota) | 918.32 mi (1,477.89 km) |
| Difficult Run to Columbine (Colorado) | 1,478.27 mi (2,379.05 km) |
| Difficult Run to Columbus (Georgia) | 610.70 mi (982.82 km) |
| Difficult Run to Columbus (Indiana) | 460.19 mi (740.61 km) |
| Difficult Run to Columbus (Mississippi) | 719.77 mi (1,158.37 km) |
| Difficult Run to Columbus (Nebraska) | 1,068.38 mi (1,719.39 km) |
| Difficult Run to Columbus (Ohio) | 309.98 mi (498.87 km) |
| Difficult Run to Commack (New York) | 253.81 mi (408.46 km) |
