Just got this book on audio for a long drive: Trading Bases: How a Wall Street Trader Made a Fortune Betting on Baseball ''Peta created a reliable system for beating Vegas odds throughout the 2011 Major League season…but it’s clear he loves the game as much as the winnings. Moreover, he asks a number of salient questions, such as: How can businesses on Wall Street and beyond apply thinking used by baseball sabermetricians to strengthen their own organizations?" He made 41% in his first year of betting professionally. Has been profitable ever since.
In USA is it possible to TRADE on sports betting like on betting exchanges www.betfair.com ? as an exchange one can LAY and ( bet that it won;t happen) and also Trade out also one can place bets IN PLAY instead of just waiting for a binary outcome.
I have a lot of acquaintances who earn on sports betting, in fact it turned out that it's quite a profitable solution, because sports events happen all the time and they are diverse, so everyone can earn in one way or another. But there are also nuances, because good money can be earned only if you make predictions in advance and as accurate as possible, such as when you guess exactly how many goals and players will make them. And if you make forecasts superficially and only sometimes make bets, plus a small ratio of participants - then the profit will be small and rare. But the case is really interesting, I honestly think about it, but I'm afraid that the knowledge is not enough.
If you are talking about traditional betting then you can't trade out if things go wrong way . I was referring to P2P betting exchanges .. i guess they are not yet legal in USA! unlike UK, Australia etc