Gloucester Park is a harness racing course in Perth, Western Australia. In the suburb of East Perth, the oval course is adjacent to the WACA Ground. The track is lit, and Friday night pacing events are popular. As of 2006 the Western Australian Trotting Association have used Gloucester Park for more than 70 years, starting with the first Inter Dominion Championship held in February 1936. Gloucester Park has also been used for Telstra Rally Australia. Between 1977 and 1979 Gloucester Park was used as a venue for World Series Cricket matches. Between September 2015 and April 2017, the drop-in wickets for Optus Stadium were built and maintained in the centre of Gloucester Park.