How It Works
Open Edge EV scans 20+ sportsbooks across 130+ sport leagues in real time, detecting +EV bets, arbitrage opportunities, and middles using sharpbook pricing as the fair-value benchmark.
Aggregate Real-Time Odds
In real time, we pull odds from 20+ sportsbooks across 130+ sport leagues including DraftKings, FanDuel, BetMGM, and more. Sub-second latency means we see line movements as they happen across all major books.
Sharpbook Devigging + EV Calculation
We use the sharpest books in the world as the fair-value reference. The vig is stripped to get true no-vig probabilities, then every other book's odds are compared against that benchmark to calculate exact EV%.
+EV, Arbitrage & Middles Detection
Three types of opportunities are surfaced: +EV bets (where a book offers better odds than true probability), arbitrage (guaranteed profit by betting both sides across books), and middles (overlapping lines that create a risk-free window).
What is Positive Expected Value?
Expected value (EV) measures the average outcome of a bet repeated many times. A bet has positive EV when the potential profit — weighted by the true probability of winning — exceeds the potential loss.
Example: if a team's true probability of winning is 55%, but a sportsbook is offering +120 (implying only 45.5%), placing this bet repeatedly will yield profit in the long run — even though you'll lose individual bets roughly 45% of the time.