I have been betting this system with success but I've slightly altered the rules. I'll see how it goes today...

Caulfield
4/1

Cowra
6/2

Tatura
10/5

Gold Coast
4/3

Broome
1/1
5/2
6/4

Toowoomba
5/3

Dombeen
3/1
4/5
6/12
7/3
8/8