What Does -110 Mean in Betting?
Almost every point spread and game total you see is priced at -110. Here is what the number says, what it costs, and why the book collects a small fee on every bet.
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Risk 110 to win 100
A minus number tells you how much you must risk to win 100. At -110, you risk $110 to win $100. If the bet wins, you get back your $110 stake plus $100 in profit, so $210 in total. If it loses, you lose the $110.
The same ratio works at any size. A $11 bet wins $10, and a $55 bet wins $50.
Why -110 is the standard price
Spreads and totals are set so the two sides are close to a coin flip. Because each side is about equally likely, books usually post -110 on both. You will see it on a spread such as Team A -3.5 (-110) and Team B +3.5 (-110), and on an over/under such as Over 44.5 (-110) and Under 44.5 (-110).
Some books shade a side to -115 or -105 when more bettors lean one way. The -110 on both sides is still the common starting point.
Where the sportsbook's cut comes from
Suppose one bettor puts $110 on each side. The book holds $220. It pays the winner $210 ($110 stake plus $100 profit) and keeps $10, about 4.5% of the money taken in. That $10 is the book's cut, often called the vig or juice.
Since the winner is paid $100 and the loser pays $110, a bettor needs to win a little more than half the time just to come out even.
The break-even win rate
Divide the amount risked by the total return: 110 divided by 210 is about 52.4%. A bettor must win roughly 52.4% of -110 bets to break even. That works out to about 11 wins in every 21 bets.
Hitting exactly half loses money. Over 100 bets of $110, 50 wins pay $5,000 and 50 losses cost $5,500, a net loss of $500.
Bets can lose, and nobody should bet money they cannot afford to lose. Bettors must be 21 or older where betting is legal. If gambling is a problem for you or someone you know, call 1-800-GAMBLER.
Questions
Does -110 mean I lose $110 every time?
No. You only lose the $110 when the bet loses. When it wins, you receive $100 in profit and your $110 stake back.
Why not just pay even money?
Even money (+100 on both sides) would pay the winner exactly what the loser pays, leaving the book nothing. The extra $10 at -110 is how the sportsbook earns its fee.
Is -110 the same as 52.4%?
Almost. -110 is a price, and 52.4% is the win rate needed to break even at that price. It is not a prediction about any single game.
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