| Difficult Run to Denizli | 5,378.40 mi (8,655.69 km) |
| Difficult Run to Derecik | 6,009.24 mi (9,670.94 km) |
| Difficult Run to Dereli | 5,609.08 mi (9,026.95 km) |
| Difficult Run to Derik | 5,844.10 mi (9,405.17 km) |
| Difficult Run to Derinkuyu | 5,580.32 mi (8,980.65 km) |
| Difficult Run to Develi | 5,609.50 mi (9,027.61 km) |
| Difficult Run to Dicle | 5,786.45 mi (9,312.39 km) |
| Difficult Run to Digor | 5,807.56 mi (9,346.36 km) |
| Difficult Run to Dikili | 5,229.38 mi (8,415.87 km) |
| Difficult Run to Divrigi | 5,663.76 mi (9,114.94 km) |
| Difficult Run to Diyadin | 5,859.77 mi (9,430.39 km) |
| Difficult Run to Diyarbakir | 5,815.87 mi (9,359.73 km) |
| Difficult Run to Doganhisar | 5,468.25 mi (8,800.29 km) |
| Difficult Run to Dogansehir | 5,716.55 mi (9,199.89 km) |
| Difficult Run to Dogubayazit | 5,873.86 mi (9,453.06 km) |
