The game seems to do a good job of adjusting rank until the vast majority of players have about 50% wins. At lower ranks, this usually happens from fighting a combination of mechs slightly stronger, slightly weaker or about the same as your own.
As one moves up to higher ranks, however, more and more games consist of: a) see 2000 HP all mythical mech and instantly quit, and b) pair with 1100 HP epic/legendary mech who instantly quits. This, of course, still balances out to about 50%.
Anyway, my question is: is there a point at which this starts to happen less again? Is there a point at which the number of close games increases again?