Instantly calculate the Expected Value of any bet. Enter the odds and your probability estimate to see if the bet has positive mathematical edge.
Expected Value (EV) is the single most important concept in profitable sports betting. It tells you the average amount you can expect to win or lose per bet over the long run. A positive EV means the odds offered by the bookmaker are higher than they should be relative to the true probability of the outcome occurring.
The formula is straightforward: EV = (probability x odds) - 1. If your estimate of the true probability is 55% and the bookmaker offers odds of 1.90, the EV is (0.55 x 1.90) - 1 = +0.045, or +4.5%. This means that for every €100 you bet, you expect to profit €4.50 on average. Negative EV bets will lose money in the long run, no matter how confident you feel.
The key challenge is estimating the true probability accurately. OdinPicks uses Pinnacle no-vig odds as a benchmark because Pinnacle's closing lines are widely regarded as the most efficient in the market. When our model finds a probability higher than Pinnacle's implied probability, we have a potential positive EV opportunity.
It's important to understand that positive EV does not guarantee winning every bet. Variance is real — you can lose several positive EV bets in a row. But over hundreds of bets, the math works out. This is the same principle that casinos use in reverse: the house has a small edge on every bet, and over millions of bets, that edge compounds into reliable profit.