An option to make entry of games restricted to within a certain range of points/ranks, if the creator so chooses.
Why:
noobs can preventing being farmed by more experienced players over and over
pros can avoid losing 1000 points to the cook who jumped into their game
lower ranks can choose to train by only playing against higher ranks
higher ranks can choose to only play with people who have a clue how to play
The world would be your oyster.