The difference between the -110 odds and the +100 fair odds is the vig. This 0-vig line of 50% matches the probability of a coin toss outcome. The -110 odds on each side would imply that the 0-vig line is even money (50% probability).

In the long run, we'd always lose no matter what. If we flip a coin with a sportsbook, they theoretically would make it -110 for heads and -110 for tails. The best way to think about vig is that it’s the amount the sportsbook expects to make on any given bet.Īnd it matters because to get the true probability of an event, we need to remove the vig. PromoGuy's +EV Betting Guide Table of Contents Here are nine things I consider critical to know for +EV betting. Betting on your favorite teams, using your intuition, and statistical handicapping of teams are just a few.īut +EV betting is a great way not only to learn the ins and outs of the basic math behind sports betting, but also to make some money in the process in a quantifiable way.ĮV betting is not about what you think will happen, but about an advantage you have over the implied probabilities of bets by using lines and information sportsbooks are already giving you.

5050 gambling with varying bets