What does a +3.5 spread mean?

It means that team is the underdog and is given 3.5 points. Your bet wins if they win outright or lose by 3 or fewer points. The half-point guarantees there is no tie.

What is the hook in betting?

The hook is the half-point attached to a spread or total (the “.5”). It removes the possibility of a push, so every bet either wins or loses rather than refunding.

Is the spread or the moneyline better?

Neither is universally better — they suit different reads. Take the spread when you expect a close margin against a favourite; take the moneyline when you back an underdog to win outright. Compare both prices before deciding.

What does “buying points” mean?

Buying points moves the spread in your favour — say from -3.5 to -2.5 — in exchange for a worse price. It is most valuable around key numbers like 3 and 7 in football, where the extra half-point changes a meaningful share of outcomes.

What is a “key number” in betting?

Key numbers are the most common margins of victory. In the NFL, games land on 3 and 7 far more often than other numbers, so a spread on either side of those values is worth more than a half-point elsewhere.

What happens to a spread bet in overtime?

Overtime counts toward the final score for spread and total bets unless a sportsbook explicitly states otherwise. A late overtime touchdown can flip a spread result, which is part of why totals and spreads carry the hook.

Sports betting · 5 min read

What Is a Point Spread? Spreads, Totals & the Hook Explained

Last updated: June 1, 2026

The point spread is the great equaliser of sports betting: instead of just picking a winner, you bet on the margin of victory. It turns a lopsided matchup into a roughly 50/50 proposition.

Here is how to read a spread, how it connects to the moneyline and the total, and the small details — like the hook — that decide bets.

Reading the spread

A spread is written as a number with a sign attached to each team. The favourite is laid points (e.g. -3.5) and the underdog is given them (+3.5). The favourite must win by more than the number; the underdog can lose by less than it — or win outright.

If the Bills are -3.5 against the Chiefs, a Bills bet wins only if Buffalo wins by 4 or more. A Chiefs +3.5 bet wins if Kansas City loses by 3 or fewer, or wins the game.

The hook and the push

The half-point on a line is called the hook. It exists to prevent a push — a tie — where stakes are refunded. A spread of -3 can push if the favourite wins by exactly 3; -3.5 cannot.

Because so many football games land on 3 and 7, buying or selling half a point around those numbers meaningfully changes your win probability. This is where line shopping earns its keep.

Spreads, moneylines, and totals

The same game offers several markets. The moneyline is a straight bet on the winner; the spread bets the margin; the total (over/under) bets the combined score, independent of who wins.

They are all priced off the same underlying probabilities, so a big spread implies a heavy moneyline favourite. Comparing the three helps you find the format with the best value for your read on the game.

Frequently asked questions

What does a +3.5 spread mean?: It means that team is the underdog and is given 3.5 points. Your bet wins if they win outright or lose by 3 or fewer points. The half-point guarantees there is no tie.
What is the hook in betting?: The hook is the half-point attached to a spread or total (the “.5”). It removes the possibility of a push, so every bet either wins or loses rather than refunding.
Is the spread or the moneyline better?: Neither is universally better — they suit different reads. Take the spread when you expect a close margin against a favourite; take the moneyline when you back an underdog to win outright. Compare both prices before deciding.
What does “buying points” mean?: Buying points moves the spread in your favour — say from -3.5 to -2.5 — in exchange for a worse price. It is most valuable around key numbers like 3 and 7 in football, where the extra half-point changes a meaningful share of outcomes.
What is a “key number” in betting?: Key numbers are the most common margins of victory. In the NFL, games land on 3 and 7 far more often than other numbers, so a spread on either side of those values is worth more than a half-point elsewhere.
What happens to a spread bet in overtime?: Overtime counts toward the final score for spread and total bets unless a sportsbook explicitly states otherwise. A late overtime touchdown can flip a spread result, which is part of why totals and spreads carry the hook.

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Educational content for informational purposes only. Not betting or financial advice. Please gamble responsibly. 21+ where applicable.