Congratulations. You have got 1 star. More star can be unlocked by purchasing @ $6.99. Just like EA games you are starving for money. There's no way you can win anything in pro class tournaments in this game, unless you buy much more diamonds to upgrade your bike. Diamond tournament for rookie class is just one time. I understand the gameplay is about getting perfect combos and it's fun for me, but still you can't win anything, wich make it suck and frustrating.