Matchmaking

Napkin math says their average roster is 1M GP higher per person. Those are different type rosters when you are talking a 5.9M average to a 6.9M. As it would be for a 4.9 v a 5.9. It's why there are divisions in GAC. Shouldn't be hard to figure out.

edit: and yes i do know how mm works. I know it factors in who joined and encourages sandbagging. But the caliber of player is different.