The Masters League of WA runs from October to March each season on a Monday or Tuesday night at Perth Harley-Davidson Ballpark. To participate, a player shall be a minimum of 35 years old. The rules have been modified to assist those whose arms and legs may not be as good as they once were.
The Australian Baseball Federation is the peak representative body for baseball in Australia. The Australian Baseball Federation has national and international regulatory and co-ordination responsibilities. In performing those functions the Australian Baseball Federation uses the descriptor: "Baseball Australia".