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

Green plate block

Alexander Michalak Richard Christian Gerda Lambeck Sandy Tawa Andrew Bissex Wins Net
Hoops
#
Alexander Michalak (Newcastle National Park) 7 won 7 won 7 won 3 8 1
Richard Christian (Royal Sydney Golf Club) 3 lost 7 won 7 won 7 won, withdrawn 2 2 2
Gerda Lambeck (Canberra) 6 lost 5 lost 7 won 5 lost, withdrawn 1 1 3
Sandy Tawa (Nelson Bay) 4 lost 3 lost 3 lost 0 -11 4
Andrew Bissex (Forster) withdrawn 2 lost, withdrawn 7 won, withdrawn 0 0