The South Australian Speedcar Championship is a Speedcar championship held in the state of South Australia on an annual basis during the Australian speedway season. South Australia was the third Australian state behind Victoria and New South Wales to race speedcars when races began at the on 28 December 1935. Two years later saw the formation of the states first governing body, South Australian Speedways Limited. The first State Championship was run at the in Adelaide in 1946/47 and was won by Victorian driver Jack O'Dea. REF: www.SAspeedcars.com