What is vig in sports betting?

Vig (short for vigorish), also called juice, is the built-in commission a sportsbook charges on every bet. It's embedded in the odds rather than charged as a separate fee. For example, standard -110 odds on a point spread mean you bet $110 to win $100, with the extra $10 representing the sportsbook's cut.

What does -110 juice mean?

-110 juice means you must bet $110 to win $100. The 'extra' $10 beyond a true even-money bet is the vig — the sportsbook's built-in commission. At -110, you need to win 52.38% of your bets just to break even, not 50%.

How much does vig cost a bettor over time?

At standard -110 odds, a bettor who wins exactly 50% of bets will lose money steadily over time. For example, placing 500 bets of $110 each at a 50% win rate results in roughly $2,500 in losses purely due to vig — even though they won half their bets.

Is vig the same as the house edge?

They describe the same concept in different contexts. 'House edge' is the term typically used in casino games like roulette or blackjack, while 'vig' or 'juice' is the term used in sports betting and poker rooms. Both refer to the mathematical advantage the house builds into every wager.

Can you avoid paying vig on sports bets?

You cannot completely avoid vig, but you can reduce it. Some sportsbooks offer 'reduced juice' lines at -105 instead of -110, which lowers your break-even rate from 52.38% to about 51.2%. Shopping for the best available odds across multiple books (line shopping) is the most practical way to minimize the vig you pay, though it never eliminates it entirely.

Vig / Juice: What It Means and Why It Costs You Money

What Is Vig / Juice?

Vig — short for *vigorish* — is the fee or commission built into every bet offered by a sportsbook or bookmaker. You'll also hear it called juice, and both terms mean exactly the same thing. It's not a charge you see on a separate line like a service fee at a restaurant. Instead, it's quietly baked into the odds themselves, which is what makes it easy to overlook.

Think of vig the way you'd think about a currency exchange desk at the airport. The exchange rate they offer you is slightly worse than the real market rate — that gap is how they make money. You never hand over a separate fee, but you still pay. Vig works the same way.

How Vig Works in Practice

The clearest place to spot vig is on a standard point spread bet. A sportsbook will typically list both sides of a game at -110 odds. That means you need to bet $110 to win $100 on either team.

If the bet were truly 50/50 with no house edge, fair odds would be -100 (bet $100, win $100). The difference between -100 and -110 is the vig. That extra $10 per $110 wagered is the sportsbook's cut.

Here's what that looks like in a simple scenario:

Two bettors each wager $110 on opposite sides of a game.
Total money collected by the book: $220.
The winner receives their $110 back plus $100 in winnings: $210 paid out.
The sportsbook keeps the remaining $10 — that's the vig.

The book profits no matter who wins.

The Break-Even Math Every Bettor Should Know

Because of vig at -110, you don't break even by winning half your bets. You actually need to win 52.38% of your bets just to stay at zero over time.

The formula is straightforward:

> Break-even % = Risk ÷ (Risk + Win)

> = 110 ÷ (110 + 100)

> = 110 ÷ 210

> = 52.38%

That gap between 50% and 52.38% is small, but over hundreds of bets it adds up to a significant loss. A bettor placing 500 bets at $110 each who wins exactly 50% of the time would still lose approximately $2,500 purely due to vig.

Does Vig Change Depending on the Bet?

Yes — vig varies by bet type, sportsbook, and market. Standard point spread bets often carry -110 on both sides, but other wagers can carry much steeper juice:

Moneyline favorites often have higher vig baked into the lopsided odds.
Parlays are known for carrying significantly more vig than straight bets, because the book's edge compounds with each added leg.
Prop bets can carry vig equivalent to -120 or worse on each side.
Reduced juice books sometimes offer -105 lines, which lowers your break-even rate to about 51.2%.

Shopping for better lines across multiple sportsbooks — a practice called line shopping — is one way bettors try to reduce the impact of vig, though it does not eliminate it.

Why Vig Matters to You as a Bettor

Vig is the mathematical reason that sports betting, like all forms of gambling, is a losing proposition on average over the long run. It's not a flaw in your strategy or a run of bad luck — it's a structural feature of how the market is designed.

Knowing this doesn't mean you can't enjoy sports betting. But it does mean going in with clear eyes: every bet you place costs you a small percentage before the game even starts. The honest way to think about sports betting is as entertainment with a price, and vig is a big part of that price.

*If gambling is causing stress, financial strain, or relationship problems, free and confidential help is available 24/7 by calling the National Problem Gambling Helpline at 1-800-522-4700.*