| Duncan to Recica | 5,464.67 mi (8,794.54 km) |
| Duncan to Ribnica | 5,483.16 mi (8,824.30 km) |
| Duncan to Ribnica | 5,468.22 mi (8,800.26 km) |
| Duncan to Rogaska Slatina | 5,495.10 mi (8,843.50 km) |
| Duncan to Rogasovci | 5,484.10 mi (8,825.80 km) |
| Duncan to Rogatec | 5,497.87 mi (8,847.97 km) |
| Duncan to Ruse | 5,477.02 mi (8,814.42 km) |
| Duncan to Salovci | 5,492.76 mi (8,839.74 km) |
| Duncan to Selnica ob Dravi | 5,475.70 mi (8,812.29 km) |
| Duncan to Semic | 5,503.58 mi (8,857.16 km) |
| Duncan to Sempeter pri Gorici | 5,434.07 mi (8,745.29 km) |
| Duncan to Sencur | 5,449.57 mi (8,770.23 km) |
| Duncan to Sentilj | 5,475.54 mi (8,812.04 km) |
| Duncan to Sentjernej | 5,501.31 mi (8,853.51 km) |
| Duncan to Sentjur | 5,486.81 mi (8,830.17 km) |
