At Mackey Park, Tempe and also at Royal Sydney Golf Club. Probably 4 qualifying blocks followed by a best-of-3 knockout, plus consolation events.
https://portal.revolutionise.com.au/cnsw/events/319519

NSW GC Open Singles Championship

Y knockout (Bo3)

Quarter Finals

Peter Sinclair (Marrickville)6 lost7 won1 lost
Steve Podolak (Belmont, Vic)7 won4 lost7 won
Jill Sullivan (Cooks River)7 won7 won
Stephen Burns (Cooks River)3 lost1 lost
Chris Williamson (Toronto)7 won7 won
Michael Chang (Mosman)3 lost4 lost
Sue Sellers (Toronto)7 won7 won
Martin Wooster (Toronto)2 lost5 lost

Semi Finals

Steve Podolak (Belmont, Vic)7 lost
Jill Sullivan (Cooks River)10 won
Chris Williamson (Toronto)7 lost
Sue Sellers (Toronto)10 won