| Difficult Run to Tulare (California) | 2,287.60 mi (3,681.53 km) |
| Difficult Run to Tullahoma (Tennessee) | 545.71 mi (878.23 km) |
| Difficult Run to Tulsa (Oklahoma) | 1,033.00 mi (1,662.46 km) |
| Difficult Run to Tumwater (Washington) | 2,336.56 mi (3,760.33 km) |
| Difficult Run to Tupelo (Mississippi) | 707.35 mi (1,138.37 km) |
| Difficult Run to Turlock (California) | 2,341.84 mi (3,768.82 km) |
| Difficult Run to Tuscaloosa (Alabama) | 689.60 mi (1,109.80 km) |
| Difficult Run to Tustin (California) | 2,262.14 mi (3,640.57 km) |
| Difficult Run to Twentynine Palms (California) | 2,158.39 mi (3,473.60 km) |
| Difficult Run to Twin Falls (Idaho) | 1,943.84 mi (3,128.30 km) |
| Difficult Run to Twin Rivers (New Jersey) | 178.78 mi (287.73 km) |
| Difficult Run to Twinsburg (Ohio) | 273.55 mi (440.23 km) |
| Difficult Run to Two Rivers (Wisconsin) | 641.19 mi (1,031.89 km) |
| Difficult Run to Tyler (Texas) | 1,104.04 mi (1,776.78 km) |
| Difficult Run to Tysons (Virginia) | 6.59 mi (10.60 km) |
