| Difficult Run to Cavdir | 5,431.30 mi (8,740.82 km) |
| Difficult Run to Cay | 5,421.34 mi (8,724.80 km) |
| Difficult Run to Caybasi | 5,544.84 mi (8,923.56 km) |
| Difficult Run to Caycuma | 5,334.31 mi (8,584.75 km) |
| Difficult Run to Cayeli | 5,675.46 mi (9,133.77 km) |
| Difficult Run to Cayiralan | 5,571.88 mi (8,967.08 km) |
| Difficult Run to Cayirhan | 5,379.22 mi (8,657.02 km) |
| Difficult Run to Cayirli | 5,714.08 mi (9,195.92 km) |
| Difficult Run to Cayirova | 5,254.34 mi (8,456.05 km) |
| Difficult Run to Caykara | 5,674.92 mi (9,132.91 km) |
| Difficult Run to Cekerek | 5,529.66 mi (8,899.13 km) |
| Difficult Run to Cekme | 5,237.18 mi (8,428.43 km) |
| Difficult Run to Celtik | 5,432.56 mi (8,742.87 km) |
| Difficult Run to Cerkes | 5,394.14 mi (8,681.02 km) |
| Difficult Run to Cerkezkoy | 5,178.98 mi (8,334.76 km) |
