Today I watched the lead up to the race on Unitab and in particular the pricing. Here is how it went down:

5mins 9 5 11 1 6
4mins 9 5 6 11 8
1mins 9 5 11 6 4
0mins 9 5 11 6 8
CLOSED 9 5 6 8 11

Result: 11 paying 12.90