[MagikMasterMind]

I'd see this working with ratings. You fight players of your own rating or if you wait too long to have a match, you can fight someone challenging you.

You should also be able to select your kind of game (lightning, Regular, sudden death etc.)

E.g
I'd see a stat board for every game type

you start with a rate of 1600
you win - depending on the oponent's rating your rating grows. If you play a 1800, you will grow more than if you played a 1625 in other words.

You lose - according to your opponent's rating, you either lose a bit or a lot.