This site had the best reviews and gave 50% bonus for whatever you deposited your first time.

Use this link if you feel like betting, it’ll give you that 50% bonus money up to $250

www.bovada.lv

I bet $150 to win $367.50 if the Celtics beat the Cavaliers in the Eastern Conference Finals.

And a reach but $50 to win $1000 on the NBA Championship. $50 for entertainment alone, hell I’ve dropped more than that on a crappy lunch.