| Difficult Run to Radauti | 4,821.16 mi (7,758.91 km) |
| Difficult Run to Ramnicu Sarat | 4,966.54 mi (7,992.87 km) |
| Difficult Run to Ramnicu Valcea | 4,873.36 mi (7,842.92 km) |
| Difficult Run to Rasnov | 4,895.81 mi (7,879.04 km) |
| Difficult Run to Reghin | 4,818.55 mi (7,754.71 km) |
| Difficult Run to Resita | 4,766.80 mi (7,671.43 km) |
| Difficult Run to Roman | 4,896.72 mi (7,880.50 km) |
| Difficult Run to Rosiori de Vede | 4,938.58 mi (7,947.87 km) |
| Difficult Run to Rovinari | 4,833.03 mi (7,778.01 km) |
| Difficult Run to Roznov | 4,884.84 mi (7,861.39 km) |
| Difficult Run to Sabaoani | 4,890.10 mi (7,869.85 km) |
| Difficult Run to Sacele | 4,904.38 mi (7,892.84 km) |
| Difficult Run to Sacueni | 4,694.77 mi (7,555.50 km) |
| Difficult Run to Salcea | 4,845.91 mi (7,798.75 km) |
| Difficult Run to Salonta | 4,698.93 mi (7,562.19 km) |
