If you've won those 3 games you should have received some stars or points. I'm going to refer to stars as points because it takes 180 points(stars) to beat remix tour and face the Beastie Boys.
Each team has different star/point difficulties & game types; ranging from 1 - 3 stars. When you win you receive stars/points. The more you win, you will notice it unlocks a different division of the map, allowing you to face other teams @ different difficulties.
Hope this helps!
~The choices you make, dictate the life you lead. "To thine own self be true."~