The easiest way to get to Velká Chuchle Racecourse is by metro, line B, to Smíchovské nádraží station. There are several bus lines that will take you to Velká Chuchle. Line 244 stops directly in front of the main entrance to the arena (the name of the stop is Závodiště Chuchle).
You can also take lines number 129, 241 and 318, get off at the Dostihová stop and walk for about 800 metres (from the bus stop you walk along Dostihová Street in the direction of a railway crossing where you will turn left to Radotínská Street).
You can also take line number 172, get off at the Kazínská stop and walk for about 600 metres (from the bus stop you walk back to railway crossing where you will turn right to Radotínská Street).