| Southborough to Richmond (California) | 5,370.71 mi (8,643.33 km) |
| Southborough to Richmond (Indiana) | 3,962.14 mi (6,376.44 km) |
| Southborough to Richmond (Kentucky) | 4,036.42 mi (6,495.99 km) |
| Southborough to Richmond (Texas) | 4,898.33 mi (7,883.11 km) |
| Southborough to Richmond (Virginia) | 3,768.58 mi (6,064.94 km) |
| Southborough to Richmond Heights (Florida) | 4,463.31 mi (7,183.01 km) |
| Southborough to Richmond Heights (Ohio) | 3,750.00 mi (6,035.03 km) |
| Southborough to Richmond Hill (Georgia) | 4,192.99 mi (6,747.97 km) |
| Southborough to Richmond West (Florida) | 4,466.99 mi (7,188.93 km) |
| Southborough to Richton Park (Illinois) | 3,996.33 mi (6,431.47 km) |
| Southborough to Ridge (New York) | 3,430.43 mi (5,520.75 km) |
| Southborough to Ridgecrest (California) | 5,360.50 mi (8,626.89 km) |
| Southborough to Ridgefield (New Jersey) | 3,480.18 mi (5,600.81 km) |
| Southborough to Ridgefield (Washington) | 4,926.34 mi (7,928.18 km) |
| Southborough to Ridgefield Park (New Jersey) | 3,479.41 mi (5,599.57 km) |
