Softball in Western Australia first gathered interest in 1947 after an exhibition match with ex-US servicemen led to a competition being created, which expanded in 1948.
WASA was formally established the following year in 1949 as WAWSA (Western Australian Women's Softball Association).
Western Australia sent their first team to compete in the Gilley's Shield in 1951.
The first games were played at Wellington Square East Perth, moving to Langley park in the early 1950s.
On 22 September 1991 WASA's very own purpose-built facility was opened, and is currently the headquarters for softball in WA located at Lot 27 Chesterfield Road Mirrabooka (opposite Herb Graham Recreation Centre).