| Difficult Run to Chenove | 3,999.20 mi (6,436.09 km) |
| Difficult Run to Cherbourg | 3,658.22 mi (5,887.33 km) |
| Difficult Run to Chevigny-Saint-Sauveur | 4,004.37 mi (6,444.41 km) |
| Difficult Run to Chevilly-Larue | 3,846.34 mi (6,190.09 km) |
| Difficult Run to Chilly-Mazarin | 3,846.27 mi (6,189.97 km) |
| Difficult Run to Choisy-le-Roi | 3,848.78 mi (6,194.01 km) |
| Difficult Run to Cholet | 3,750.65 mi (6,036.09 km) |
| Difficult Run to Clamart | 3,841.62 mi (6,182.48 km) |
| Difficult Run to Claye-Souilly | 3,855.76 mi (6,205.25 km) |
| Difficult Run to Clermont | 3,833.10 mi (6,168.78 km) |
| Difficult Run to Clermont-Ferrand | 3,958.71 mi (6,370.92 km) |
| Difficult Run to Clermont-l'Herault | 4,037.07 mi (6,497.04 km) |
| Difficult Run to Clichy | 3,840.80 mi (6,181.17 km) |
| Difficult Run to Clichy-sous-Bois | 3,851.05 mi (6,197.66 km) |
| Difficult Run to Cluses | 4,102.79 mi (6,602.80 km) |
