Betting 101 · Red Meat & Cigar Club editorial
The Vig (Juice)
How the house gets paid.
Example numbers — made up for illustration, not real lines
The "vig" — short for vigorish, and also called the juice, the margin, or the hold — is how sportsbooks make money. It's built into nearly every price you see. Understanding it is the most important step toward having realistic expectations about betting.
The basic example
A standard spread is priced at -110 on both sides. You risk $110 to win $100 whichever side you choose. Imagine a book takes exactly $110 on each side, $220 total. One side wins and is paid $210 (their $110 back plus $100 profit). The book keeps $10. That $10 on $220 wagered is about a 4.5% theoretical hold.
What it means for you
At -110, the break-even win rate is 110 ÷ 210 ≈ 52.4%. If you win exactly half your bets, you lose money. Over 100 bets of $110 each, going 50-50 means you win $5,000 and lose $5,500 — a $500 loss. You'd need to win 53 of 100 just to come out slightly ahead.
Finding the vig in any market
Convert each side's odds to implied probability and add them. Example: -110 / -110 = 52.4% + 52.4% = 104.8%. Example: -150 / +130 = 60.0% + 43.5% = 103.5%. The amount over 100% shows how much margin is built in. Lower is better for the bettor.
Where the vig is higher
- Parlays and same-game parlays compound margins across legs. See parlays.
- Futures often carry large total margins across many outcomes. See futures.
- Props and live betting can be priced with wider margins because they're harder to set precisely.
Sportsbooks' actual results vary, but state regulators publish gross gaming revenue figures, and parlays are commonly cited as a major driver of operator revenue.
Reduced-juice pricing
Some books occasionally offer prices like -105 instead of -110. The break-even rate at -105 is about 51.2%. That sounds small, but over many bets it matters more than most people expect. This is one reason line shopping exists.
Why it matters
The vig is why sportsbooks are profitable businesses and why most bettors lose over time. It doesn't mean nobody ever wins — people win bets every day, and some individuals win over long periods — but the built-in margin is a steady headwind. Knowing that should shape how much you bet and why.
The healthy mindset
Think of the vig like the price of admission. You pay a little for the fun of having something riding on the game. If that cost is affordable and the entertainment is worth it, great. If you find yourself trying to beat the vig to pay bills, that's a sign to stop and call 1-800-GAMBLER.
Worked example: a season at -110
Example: a bettor places 200 bets of $22 each at -110 over a season and wins exactly 100. Winnings: 100 × $20 = $2,000. Losses: 100 × $22 = $2,200. Net: -$200, even with a perfectly even record. At 105 wins and 95 losses, net is about +$10. The margin is small per bet and large over time.
Common mistakes
- Measuring success by win percentage without accounting for price.
- Ignoring how much extra margin parlays and futures carry.