See what the odds would be if the sportsbook didn't take a cut.
The vig (or "juice") is the sportsbook's built-in profit margin. When you see -110 on both sides of a bet, that's the vig at work. You're risking $110 to win $100, which means the book keeps roughly 4.76% over time.
Removing the vig reveals the "true" odds—what the line would look like if the book took no cut. This is essential for finding value bets. If Book A's no-vig line shows Team A at +105 fair value, and Book B is offering +115, you've found positive expected value.
Sharp bettors use no-vig calculations constantly. It's the foundation for understanding whether a line offers value or if you're just paying too much juice. The lower the vig, the better—look for books that consistently offer tighter spreads.
