The vig — also called the juice or the house edge — is the single biggest reason most sports bettors lose money long-term, and understanding it is the first step to beating it.
Most sportsbooks charge -110 on both sides of a standard point spread, meaning you must wager $110 to win $100. That built-in margin gives the book roughly a 4.5% edge on every bet. Over thousands of wagers, that edge compounds into significant losses unless you have a strategy to overcome it.
What the Vig Actually Costs You
If you bet $110 on every game at -110 and go exactly 50/50, you lose $5 per two-game cycle. To break even at -110, you need to win 52.4% of your bets. At -105 (a reduced-vig line), your break-even drops to 51.2%. That 1.2% difference across hundreds of bets equals real money. Shopping for reduced vig is one of the fastest ways to improve your results without changing a single pick.
How to Beat the Vig
Shop for the best price. Having accounts at four to six sportsbooks gives you the ability to consistently find -105 or even -104 lines rather than -110. Over a full season, this alone can add 2-4% to your ROI.
Target positive-EV spots. When your model or analysis suggests a team is a true -115 favorite but the book is offering -108, you have a +EV edge. Winning bettors collect these edges repeatedly rather than chasing upsets.
Exploit opening line inefficiencies. Early lines are often less sharp. Sportsbooks set them conservatively and adjust based on action. Getting to a line early — before the market corrects — gives you a head start on beating the book's hold.
Use prop markets strategically. Props often carry higher vig, but they also tend to be less efficiently priced. A focused approach targeting mispriced props can yield better ROI than grinding spreads.
Tracking Your Vig-Adjusted Performance
Knowing your raw win rate isn't enough. You need to measure your closing line value (CLV) — how your bet price compares to the closing number. Positive CLV is the clearest signal that you're consistently finding value before the market corrects.
Start tracking every bet, including the line you got versus the closing line, with Oddible — the analytics platform built for serious sports bettors.
