| Richardson to Zottegem | 4,905.62 mi (7,894.84 km) |
| Richardson to Zulte | 4,889.98 mi (7,869.66 km) |
| Richardson to Zwevegem | 4,890.07 mi (7,869.81 km) |
| Richardson to Zwijndrecht | 4,913.94 mi (7,908.22 km) |
| Richardson to Asenovgrad | 6,068.32 mi (9,766.02 km) |
| Richardson to Aytos | 6,120.75 mi (9,850.40 km) |
| Richardson to Balchik | 6,116.37 mi (9,843.35 km) |
| Richardson to Bankya | 5,971.75 mi (9,610.61 km) |
| Richardson to Bansko | 6,025.81 mi (9,697.61 km) |
| Richardson to Berkovitsa | 5,945.93 mi (9,569.05 km) |
| Richardson to Blagoevgrad | 6,002.67 mi (9,660.36 km) |
| Richardson to Botevgrad | 5,986.24 mi (9,633.92 km) |
| Richardson to Burgas | 6,138.32 mi (9,878.67 km) |
| Richardson to Byala Slatina | 5,964.65 mi (9,599.18 km) |
| Richardson to Chirpan | 6,076.19 mi (9,778.69 km) |
