But I found a site recently that teaches "sports arbitrage" arbitragedirect.com that seems interesting. The concept is legit as their is always arbitrage opportunities in just about any marketplace. They claim arbitrage opportunities in the 3-10% range on average which is definitely better the your bank account.
I would be happy with just a 10% monthly return on my investment!
I'm just looking for some feedback from anyone who has done this if it is as easy as it seems and truly risk free?