Anyone bet on sports at the free sites that win you money?

I started betting on sports at centsports http://www.centsports.com/?opcode=564053 and fastcashbets http://www.fastcashbets.com/index.php?action=signup&referid=1200. These sites start you out at 10 cents on centsports, and 50 cents on fastcashbets, no real money or credit card or anything. If you win over 20 bucks you can cash out. Ive been doing it since october on centsports and just joined fastcashbets. So far Ive turned 10 cents into 3 dollars on centsports, I suck at betting. Anyone else doing this. If interested click the links and sign up, they dont ask anymore than an email adress and a nickname.

so you need to earn a 20,000% increase in order to get $20? That doesn't seem like much of a deal, even if it is free.

Well, until 4 days ago I was legally obligated to not bet on sports, but now that the pesky NCAA contract is up, I might. But I think I'll do it with my buddies for some beers.

Edit: it is a cool idea though

Well if your winning percentage is better than my paltry 30 percent, you can turn it in real quick, my buddy has been doing it for a while and his balance is 80 bucks. You wont get rich off free websight money.