Just a quick glance at your AFL results reveals a possible filter when the homedog is given over 20 points head start.
What I intend doing Sportznut,is allocate the teams rating to each player's Champion Data rating in proportion and then when the teams playing list for the next round comes out,I can tally them up individually and hopefully the couple of points difference this system comes up with could make me a winner more often.
Also I intend going back through lasr years result margins and comparing to my predicted margins and averaging could give me a better idea of how much and when to apply the home ground advantage.
For those interested,Stephen Clarke wrote something to the effect that the Home Advantage is due to 3 factors,not necessarilly equally.
Travelling causes fatigue and unfamiliarity.
The crowd influences players and umpires.
The ground played on is unfamiliar.