Point Spread Explained

The point spread is the most common bet type in U.S. football and basketball. Instead of betting on who wins, you bet on a margin: did the favorite win by enough, or did the underdog lose by little enough (or win outright)?

How spreads work

A spread looks like this:

Lakers -7.5 (-110)
Nuggets +7.5 (-110)

The Lakers are 7.5-point favorites. To bet the Lakers -7.5, you need them to win by 8 or more. To bet the Nuggets +7.5, you need them to win outright or lose by 7 or fewer. The (-110) is the price; risk $110 to win $100 in profit.

A whole-number spread (e.g., -7) introduces push risk: if the favorite wins by exactly 7, the bet is refunded. A half-point spread (-7.5) eliminates that, which is why you'll see books move from -7 to -7.5 to "buy off the push" when sharp money arrives.

Reading the price next to the spread

The price beside the spread (-110, -105, +100, etc.) is the moneyline-equivalent cost of taking that point. Books normally run spreads at -110 / -110, meaning the implied probability of either side covering is about 52.4%. The 4.8% gap from 100% is the book's vig (see our no-vig calculator).

When books want action on one side without changing the number, they shift the price. Lakers -7.5 (-115) means the book has heavier action on the Lakers and is making it slightly more expensive to bet them. Same point, different price. Always check both the number and the price; the price often differs more across books than the number does.

Key numbers

Some margins occur much more often than others. In the NFL, the most common winning margins are 3 and 7 (followed by 10, 6, 14). These are called key numbers. A spread of -2.5 (across the 3 key number) implies a meaningfully different win probability than -3.5.

Buying half-points across a key number costs more than buying half-points off a non-key number. If you can move a -3 to a -2.5 cheaply, that's often worth it. If you can't, taking the +3 vs the +2.5 is materially better than the price difference suggests.

NBA key numbers cluster around 4 and 5 (close games settled by a free throw or possession). They're less peaked than the NFL distribution. NHL and MLB use 1.5 puck/run lines that function differently from true spreads.

When spreads exist and when they don't

• NFL, NBA, NCAAF, NCAAB, WNBA: spreads are the primary betting market. Available on every game.
• NHL: the puck line is a fixed -1.5 / +1.5 spread. Not a true variable spread.
• MLB: the run line is a fixed -1.5 / +1.5 spread.
• Soccer: Asian handicaps are equivalent to spreads, available at most U.S. books.
• MMA, boxing, tennis: no traditional spreads. Some books offer alternate "points/rounds handicap" markets.

Why spreads move

Spreads move because of money. When sharp money or volume hits one side, the book adjusts the spread (or the price) to balance its risk. The opening number reflects the book's pre-game model; the closing number reflects all the information the market has digested by kickoff.

Closing-line value (CLV) is a sharp metric: did you bet the spread before it moved in your direction? If you took -3 and it closed at -3.5, you got 0.5 points of CLV. Sharp bettors track CLV because it's a leading indicator of long-term profit. (We have a full piece on this in Closing Line Value Explained.)

Spread vs moneyline

For the same game, the spread and moneyline are linked. A team at -7 spread will have a moneyline somewhere around -300 (implied 75%), depending on the sport and matchup. The moneyline strips out the spread; the spread strips out the cost of the moneyline.

Take the moneyline when you think a small underdog wins outright. Take the spread when you think the favorite wins comfortably or the underdog stays close.

Line shopping spreads

Spreads vary across books in two ways: the number itself (-7 vs -7.5) and the price (-110 vs -105). Both matter. A team you're taking at -7 is materially different from -7.5 if the actual margin lands on 7. A team at -110 vs -105 is materially different across volume, even if the number is the same.

MatchupOdds shows the spread row for every active game with both pieces of information visible, and highlights the best combined price across every major U.S. book. See it in action on any NFL, NBA, or best-lines page.

Frequently Asked Questions

What is a point spread?

A point spread is a margin the favorite must win by (or the underdog must lose by less than) for that side to cover. A team listed at -3.5 must win by 4 or more; the team at +3.5 covers if they win outright or lose by 3 or fewer.

What does the price next to a spread mean?

The price (e.g., -110) is the moneyline-style cost of taking that side at that point. Spreads typically run -110 / -110, but they can shift if the book wants to encourage action on one side without moving the number itself.

What is a key number?

A key number is a margin of victory that occurs unusually often in a sport (3 and 7 in NFL, 4 and 5 in NBA). Spreads cluster around key numbers because moving across one significantly changes win probability.

What happens if the game lands exactly on the spread?

A push: the bet is refunded with no win or loss. Half-point spreads (e.g., -3.5) eliminate push risk; whole-number spreads (e.g., -3) introduce it.