A point spread is a margin-of-victory adjustment applied to one team to balance the betting market. The favorite gives points to the underdog. Bettors win if the team they backed beats the spread. Standard juice on point spread bets is -110/-110, producing approximately 4.5% operator hold.
How point spreads work
The favorite is given a negative spread (e.g., -7); the underdog gets a positive spread (e.g., +7). For your bet to win:
- Favorite -7: the favorite must win by 8 or more points.
- Underdog +7: the underdog must lose by 6 or fewer, OR win outright.
- Push (rare with .5 spreads): the favorite wins by exactly the spread number. Bet refunded.
Most spreads include a half-point (e.g., -2.5) to eliminate pushes. Whole-number spreads (-3, -7) on key NFL numbers can land exactly on the spread, producing pushes.
NFL key numbers — why they matter
NFL margin of victory clusters around specific numbers. The most common margins are:
- 3 points (most common, ~14%)
- 7 points (second-most-common, ~9%)
- 10 points (~6%)
- 6 points (~5%)
- 4 points (~5%)
A spread that lands exactly on 3 or 7 (the key numbers) materially affects bet outcomes. Sharp NFL bettors specifically target spreads that allow buying off the 3 or 7 — paying juice to move from -2.5 to -2 or +6.5 to +7 has historical positive expected value.
Buying points
Most operators allow buying points — paying additional juice to adjust the spread in your favor. Standard rates: 25 cents per half-point, double for crossing key NFL numbers (3 and 7).
When buying points makes sense:
- Crossing the 3 in NFL (e.g., -3 to -2.5).
- Crossing the 7 in NFL (-7.5 to -7).
- Specific situations where the half-point materially affects outcome probability.
Buying off non-key numbers (e.g., -8 to -7.5) is rarely worth the juice.
Common point spread mistakes
- Always betting the favorite. -110 favorites lose more often than recreational bettors realize. Underdogs have positive expected value approximately as often as favorites; sharp bettors split between them.
- Ignoring key numbers. Crossing 3 or 7 in NFL spreads materially affects probability. The -3 line is much more valuable than the -3.5 line; the difference reflects the high probability of a 3-point margin.
- Treating point spreads as independent of moneyline. They're related — a strong spread cover correlates with a moneyline win. Sharp bettors compute correlated probabilities for parlay decisions.
Frequently asked questions
What is a point spread bet?
A wager on whether a team beats a margin-of-victory adjustment (the spread). Favorite gives points; underdog gets points. Standard juice -110/-110.
Why are NFL key numbers important?
NFL margins of victory cluster around specific values (3, 7, 10). Spreads that land exactly on these numbers create pushes; spreads that allow you to buy off these numbers offer historical edge.
Can I push on a point spread bet?
Yes, when the spread is a whole number (e.g., -3) and the result is exactly that margin (3-point loss). Half-point spreads (-2.5, -3.5) eliminate the push possibility.
What does buying points mean?
Paying additional juice to adjust the spread in your favor. Standard cost: 25 cents per half-point. Crossing key NFL numbers (3, 7) typically costs double.
Is point spread the same as Asian Handicap?
Mathematically similar but presentation differs. AH uses fractional handicaps and includes refund-on-push mechanics. Point spreads use whole or half numbers and typically don't have refund options. Both are margin-of-victory adjustments.