South Australian Championships
The South Australian Championships (1889–1989), also known as the South Australian State Championships and later known as the South Australian Open was an amateur and later a professional men's and women's tennis tournament played originally on outdoor grass courts up to 1987 when it switched to hard courts in its final two years. The tournament was staged at Memorial Drive Park tennis complex in Adelaide, South Australia and was part of the Grand Prix tennis circuit from 1972 until 1989.
Source: Wikipedia — South Australian Championships (CC BY-SA 4.0)