The Three Main NFL Bet Types
When you open a sportsbook and look at an NFL game, you'll typically see three core markets listed: the point spread, the moneyline, and the total (over/under). Understanding each one is essential before placing any wager.
The Point Spread
The point spread is the most popular way to bet on NFL games. The favorite is given a negative number (they must win by more than that margin), while the underdog is given a positive number (they can lose by less than that margin, or win outright, for the bet to pay).
Example:
| Team | Spread | Odds |
|---|---|---|
| Kansas City Chiefs | -6.5 | -110 |
| Las Vegas Raiders | +6.5 | -110 |
In this example, the Chiefs must win by 7 or more points for a Chiefs spread bet to cash. The Raiders cover if they lose by 6 or fewer, or win outright. Both sides are priced at -110, meaning you wager $110 to win $100.
The Moneyline
The moneyline eliminates the spread and simply asks: which team wins? The odds are adjusted to reflect each team's perceived probability of winning.
- Negative moneyline (-180): You bet $180 to win $100. This team is the favorite.
- Positive moneyline (+155): You bet $100 to win $155. This team is the underdog.
Moneylines are especially popular when backing a heavy underdog for a potentially large payout, or when avoiding a tricky spread situation.
The Total (Over/Under)
The total is a line set by the sportsbook representing the combined score of both teams. You bet whether the actual combined score will go over or under that number.
Example: Total is set at 47.5. If the final score is 28–24 = 52 total points, the over wins. If the final score is 17–14 = 31 points, the under wins.
Key Factors That Move NFL Lines
Lines aren't static — they shift from the moment they open to kickoff based on several factors:
- Betting volume: Heavy action on one side forces books to move the line to balance their exposure.
- Injury reports: A starting quarterback being ruled out can shift a spread by 3–7 points overnight.
- Weather forecasts: Wind and rain typically push totals lower.
- Sharp money: Professional bettors ("sharps") taking a position can trigger line movement even with smaller bet sizes.
Half-Point and Key Numbers in NFL Betting
In the NFL, games frequently end with margins of 3 and 7 points (reflecting field goals and touchdowns). These are called key numbers. A spread of -3 vs. -3.5 is a meaningful difference — always shop multiple books to get the best number available for your wager.
Putting It All Together
Reading NFL lines is straightforward once you understand the three primary markets. Before betting, always note the juice (the -110 or similar odds), compare lines across multiple sportsbooks, and factor in any late-breaking news like injuries or weather. Smart line-reading is a skill that pays dividends over time.