| Potomac Park to Selargius | 6,312.04 mi (10,158.25 km) |
| Potomac Park to Selvazzano Dentro | 6,067.51 mi (9,764.71 km) |
| Potomac Park to Senago | 5,975.82 mi (9,617.16 km) |
| Potomac Park to Senigallia | 6,202.02 mi (9,981.19 km) |
| Potomac Park to Seravezza | 6,094.48 mi (9,808.12 km) |
| Potomac Park to Seregno | 5,974.36 mi (9,614.81 km) |
| Potomac Park to Seriate | 5,988.52 mi (9,637.60 km) |
| Potomac Park to Sermoneta | 6,313.74 mi (10,160.98 km) |
| Potomac Park to Serramanna | 6,294.88 mi (10,130.64 km) |
| Potomac Park to Serravalle Pistoiese | 6,118.64 mi (9,847.00 km) |
| Potomac Park to Sessa Aurunca | 6,360.86 mi (10,236.82 km) |
| Potomac Park to Sesto Calende | 5,952.32 mi (9,579.34 km) |
| Potomac Park to Sesto Fiorentino | 6,133.66 mi (9,871.16 km) |
| Potomac Park to Sesto San Giovanni | 5,981.58 mi (9,626.42 km) |
| Potomac Park to Sestri Levante | 6,053.41 mi (9,742.03 km) |
