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Buying Points Explained: What Moving an NFL or NBA Spread Really Costs
Buying points is an offer at legal sportsbooks: pay extra vig to move a spread half a point in your favor. A -3 favorite becomes -2.5. The line looks friendlier, but the price is baked into worse odds, and few bettors work out whether it's worth it.
What "Buying Points" Means
The Standard Price of a Half-Point
Most US books price a -110 spread at roughly -120 for half a point, -130 for a full point. A $110 bet that normally wins $100 now needs to risk $120 or $130 for that same $100 — it only pays off if the half point changes the outcome.
Half-Point Buys Near Key Numbers
A buy's value depends on how often games land on that number. In the NFL, margins of 3 and 7 happen far more than any other margin, so moving -3.5 to -3 crosses a number that decides games. Buying off 6.5 to 5.5 crosses far less traffic.
Moneyline Math Behind the Adjustment
Compare the trade with the moneyline on the same game. If the favorite's win probability is only marginally higher than what the move is worth, the buy is overpriced — books already build a margin into every line, the way the vig shapes a standard bet.
Reduced Juice vs. Buying Points
Shopping several licensed books for reduced juice, say -105 instead of -110, often beats buying a point outright. There's no reason to pay -120 for half a point at one book if another already offers that spread for less.
NBA Point Buys: Why They Rarely Pay Off
Basketball scoring spreads across a wider range of margins, so no single number carries the weight 3 and 7 do in the NFL. A half-point buy rarely crosses a common margin, making the extra juice hard to justify.
When the Math Favors Buying a Point
The clearest case is crossing 3 in the NFL, since that number accounts for a large share of final margins. Moving +2.5 to +3, or -3.5 to -3, is one of the few buys with a real edge, related to how a line's movement ties into closing line value. Crossing 7 is second-strongest.
Checking the Cost Before You Confirm
Before buying a point, compare the new price at another licensed book and ask whether the number crossed is common in that sport. Crossing 3 in the NFL is a very different bet than crossing 9.5 in the NBA. Our beginner guides cover more of these pricing details.
Buying points changes the price of a bet, not the outcome of the game, and no adjustment guarantees a win. Only use licensed sportsbooks and confirm the odds before you confirm a wager. Bet only what you can afford to lose. 21+ (US) / 18+ (UK). If gambling stops being fun, see our responsible gambling page.
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