How's this? It's based on the results of each game no. of wins and loses. You then work out the winning percentage.

I've worked out a formula for calculating the winning percentage of a game.

% = team A - team B = winning %

E.G Port .876
Melb .564

In this example Ports winning percentage would 87.6% to beat Melb, which mean Melb would have a 12.4% chance of winning.

It still needs some work. I hope to have it ready for next years AFL season.

Any thoughts?

Benny