I'm betting the original Place system. The selections not to be bet are:

Wyong

Race 3/5,9,10,11,12
Race4/ 11,12
Race 5/ 8,10,11
Race 6/8,10,13,15
Race 7/ 5,9,12,17

Bendigo

Race 1/1,6
Race 2/ 8
Race 3/2
Race 4/4
Race 6/4,9,10
Race 7/4,5,6,8,10
Race 8/7,11,14,15

Beaudesert

Race 1/4
Race 2/2,5
Race 5/2,6
Race 6/10,12
Race 7/2,3,8,11,12
Race 8/3

Cranbourne

Race 1/6
Race 2/5,6,7
Race 3/4,11,12
Race 4/2,4,10

Wagga

Race 3/4,9,11
Race 4/9,10,11,12
Race 5/8,10,11,12
Race 6/8,12