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

Blue block

Levi Franks Raymond Chapman Terry Abbott Tony Croft Brenda-Lee Peet Jill Sullivan Bob Berry Martin Wooster Wins Net
Hoops
#
Levi Franks (Cashmere, NZ) 7 won 7 won 7 won 7 won 7 won 7 won 7 won 7 32 1
Raymond Chapman (Ballina Cherry Street) 5 lost 7 won 5 lost 7 won 4 lost 7 won 5 lost 3 0 =5
Terry Abbott (Killara) 3 lost 4 lost 3 lost 4 lost 5 lost 6 lost 2 lost 0 -22 8
Tony Croft (Port Macquarie) 2 lost 7 won 7 won 7 won 7 won 4 lost 7 won 5 8 =2
Brenda-Lee Peet (Maitland) 4 lost 3 lost 7 won 3 lost 6 lost 5 lost 1 lost 1 -17 7
Jill Sullivan (Cooks River) 1 lost 7 won 7 won 4 lost 7 won 7 won 7 won 5 2 =2
Bob Berry (Chatswood) 1 lost 5 lost 7 won 7 won 7 won 6 lost 4 lost 3 -5 =5
Martin Wooster (Toronto) 1 lost 7 won 7 won 4 lost 7 won 3 lost 6 won 4 2 4

There is no known tie break method.