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What is +EV Betting?

The complete guide to positive expected value betting -- the strategy used by professional bettors to build long-term profit.

Understanding Expected Value in Sports Betting

Expected value (EV) is the average amount a bet returns per attempt if the same wager were placed thousands of times. A positive expected value (+EV) bet is one where the math favors the bettor — the true probability of winning is higher than the odds suggest.

Consider a coin flip paying +110 on heads. That’s a +EV bet. Heads wins 50% of the time, but the payout implies only a 47.6% chance. Over 1,000 flips, that bet returns roughly $50 in profit per $100 wagered.

How +EV Betting Works

Sportsbooks set odds based on their models, public betting action, and risk management. Because different books use different models and see different action, their odds diverge -- sometimes significantly. These divergences create +EV opportunities.

The +EV Formula

EV = (Win Probability x Payout) - (Loss Probability x Stake)

Example: A moneyline at +150 with a true win probability of 45%

  • Win: 45% x $150 = $67.50
  • Loss: 55% x $100 = $55.00
  • EV = $67.50 - $55.00 = +$12.50 per $100 wagered

How to Find +EV Bets

There are several methods professional bettors use to identify +EV opportunities:

  • Odds comparison across sportsbooks -- When one book’s line is significantly better than the market average, it often represents +EV.
  • Pinnacle as a benchmark -- Pinnacle’s closing line is widely regarded as the sharpest in the market. Bets that beat the Pinnacle close are historically profitable.
  • Market divergence analysis -- When books disagree on a line, it signals uncertainty and potential value.
  • Closing line value (CLV) -- Research by Levitt (2004) and others shows that consistently beating closing lines is the strongest predictor of long-term profitability.

Why Most Bettors Don’t Use +EV

Most recreational bettors bet based on gut feelings, team loyalty, or narratives. They don’t compare odds across books or calculate implied probabilities. This is why sportsbooks are profitable -- the majority of bets placed are -EV.

The bettors who do use +EV strategies -- often called “sharps” -- are the ones books try to limit. Their edge comes not from predicting games perfectly, but from identifying when the odds are mispriced.

+EV Betting with MyOddsy

MyOddsy scans odds across 7 major sportsbooks in real time, calculates implied probabilities, and surfaces bets where the expected value is positive. Our Sharp Plays feature adds a composite scoring system that weighs odds discrepancy, market divergence, underdog value, and raw EV strength.

Find +EV Bets Now

Frequently Asked Questions

What is +EV betting?

Positive expected value (+EV) betting means placing wagers where the true probability of winning is higher than the odds imply. Over time, +EV bets produce profit regardless of individual outcomes.

How are +EV bets identified?

+EV bets are identified by comparing odds across multiple sportsbooks, calculating implied probabilities, and flagging lines where one book offers significantly better odds than the market consensus. MyOddsy automates this process.

Is +EV betting profitable long term?

Yes. By definition, consistently betting at positive expected value will produce profit over a large sample size. Individual bets can lose, but the edge compounds over hundreds of wagers.