| Preakness to Rockville (Maryland) | 201.18 mi (323.78 km) |
| Preakness to Rockville Centre (New York) | 36.02 mi (57.96 km) |
| Preakness to Rockwall (Texas) | 1,341.25 mi (2,158.53 km) |
| Preakness to Rocky Mount (North Carolina) | 394.15 mi (634.32 km) |
| Preakness to Rocky Point (New York) | 67.22 mi (108.17 km) |
| Preakness to Rocky River (Ohio) | 398.11 mi (640.70 km) |
| Preakness to Roessleville (New York) | 123.49 mi (198.75 km) |
| Preakness to Rogers (Arkansas) | 1,119.23 mi (1,801.23 km) |
| Preakness to Rogers (Minnesota) | 1,017.28 mi (1,637.15 km) |
| Preakness to Rohnert Park (California) | 2,551.98 mi (4,107.02 km) |
| Preakness to Rolla (Missouri) | 956.53 mi (1,539.38 km) |
| Preakness to Rolling Meadows (Illinois) | 717.61 mi (1,154.88 km) |
| Preakness to Roma (Texas) | 1,732.54 mi (2,788.26 km) |
| Preakness to Rome (Georgia) | 755.68 mi (1,216.15 km) |
| Preakness to Rome (New York) | 170.89 mi (275.02 km) |
