| Preakness to Rhondda | 3,323.40 mi (5,348.49 km) |
| Preakness to Rhosllanerchrugog | 3,311.54 mi (5,329.41 km) |
| Preakness to Rhyl | 3,288.78 mi (5,292.78 km) |
| Preakness to Rhymney | 3,326.11 mi (5,352.85 km) |
| Preakness to Richmond | 3,454.40 mi (5,559.32 km) |
| Preakness to Rickmansworth | 3,443.69 mi (5,542.08 km) |
| Preakness to Ripley | 3,376.46 mi (5,433.88 km) |
| Preakness to Ripon | 3,350.96 mi (5,392.85 km) |
| Preakness to Risca | 3,336.97 mi (5,370.34 km) |
| Preakness to Rochdale | 3,335.75 mi (5,368.37 km) |
| Preakness to Rochester | 3,488.87 mi (5,614.79 km) |
| Preakness to Rock Ferry | 3,306.63 mi (5,321.51 km) |
| Preakness to Rogerstone | 3,338.85 mi (5,373.37 km) |
| Preakness to Romford | 3,471.31 mi (5,586.54 km) |
| Preakness to Romsey | 3,415.53 mi (5,496.77 km) |
