Introduction
If you've ever watched an NFL game with friends who bet on sports, you've probably heard something like "I've got the Chiefs minus three" or "The Eagles are covering the spread." These phrases can sound like a foreign language to newcomers, but understanding point spreads is actually simpler than you might think—and it's the foundation of nearly all football betting.
NFL point spread betting is the most popular way to wager on professional football. Unlike simply picking which team will win, spread betting levels the playing field between mismatched opponents by asking: can you predict not just who wins, but by how much?
This guide will walk you through everything you need to know about NFL point spreads, from the basic mechanics to the key numbers that experienced bettors watch closely. By the end, you'll understand why spreads exist, how to read them, and how to place your first informed spread bet.
What Is a Point Spread?
A point spread is a number set by oddsmakers that represents the expected margin of victory between two teams. It's designed to create a balanced betting market by giving the underdog a head start and requiring the favorite to win by a certain amount.
Think of it as a handicap. If the Kansas City Chiefs are playing the Chicago Bears, the Chiefs might be heavy favorites. Without a spread, almost everyone would bet on Kansas City to win outright. The spread solves this problem by requiring the Chiefs to win by more than a specified number of points for bets on them to pay out.
- Favorite (-3.5)
- This team must win by more than 3.5 points for spread bets to win.
- Underdog (+3.5)
- This team can lose by up to 3 points (or win outright) for spread bets to win.
- Push
- When the margin exactly matches the spread, all bets are refunded.
Here's a real-world example:
Kansas City Chiefs -6.5 vs. Chicago Bears +6.5
- If you bet on the Chiefs (-6.5), they must win by 7 or more points
- If you bet on the Bears (+6.5), they must lose by 6 or fewer points, or win the game
The half-point (the ".5") exists specifically to prevent pushes, ensuring there's always a winner and loser in every spread bet.
Why Point Spreads Matter for Bettors
Point spreads transform NFL betting from a simple prediction game into a nuanced skill that rewards research and analysis. Here's why understanding spreads is essential for anyone interested in football betting:
They create betting opportunities in lopsided matchups. When the 12-1 Chiefs play the 3-10 Panthers, betting on Kansas City to simply win might pay out very little—perhaps $110 to win just $15. But betting against the spread gives you meaningful odds on every game, regardless of the talent gap.
They force you to think deeper about games. Instead of asking "Who wins?" you're asking "By how much?" This requires understanding team strengths, weaknesses, injuries, weather conditions, and dozens of other factors that influence not just outcomes, but margins.
They're where the action is. According to the American Gaming Association, point spread bets account for the largest share of NFL wagering at legal sportsbooks. Understanding spreads gives you access to the most liquid, competitive betting markets.
This last point is crucial for beginners to understand. The spread isn't necessarily what oddsmakers think will happen—it's the number they believe will split public betting evenly. This distinction creates opportunities for sharp bettors who can identify when the public perception differs from likely reality.
Getting Started with Spread Betting
Before placing your first NFL spread bet, you need to understand a few practical basics about how these wagers work at sportsbooks.
The Vig (or Juice)
When you see a spread listed, you'll typically also see odds like -110 next to each side. This means you must bet $110 to win $100 (or proportionally, $11 to win $10). This extra amount is called the "vig" or "juice"—it's the sportsbook's commission.
Because of the vig, you need to win more than 50% of your spread bets to be profitable. At standard -110 odds, you need to win approximately 52.4% of your bets just to break even. This is why finding value—bets where you believe the true probability exceeds the implied odds—is so important.
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Verify your sportsbook is licensed in your state through your state gaming commission's website
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Only bet money you can afford to lose, kept separate from living expenses
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Most experts recommend betting 1-5% of your bankroll per wager
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Practice identifying favorites, underdogs, and spreads before placing real bets
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Focus on one matchup you've researched rather than betting multiple games
Key Numbers in NFL Spread Betting
Not all point spreads are created equal. In NFL betting, certain numbers carry significantly more weight than others because of how football is scored. Understanding these "key numbers" is one of the most important concepts for spread bettors.
Why 3 and 7 Dominate
Football's scoring system—6 points for a touchdown plus 1 for an extra point (7 total), and 3 points for a field goal—means certain margins occur far more frequently than others.
Historical NFL game data shows that games are most commonly decided by:
- 3 points (~15% of games) - One field goal difference
- 7 points (~9% of games) - One touchdown difference
- 6 points (~5% of games) - One touchdown, missed extra point
- 10 points (~5% of games) - Touchdown plus field goal
- 4 points (~4% of games) - Field goal plus safety, or failed two-point conversion scenarios
What This Means for Your Bets
When you're betting a spread at or near a key number, tiny differences matter enormously:
- Getting +3 instead of +2.5 on an underdog is valuable because you'll push (get your money back) on all those games decided by exactly 3 points
- The difference between -2.5 and -3 for a favorite is massive—one lets you win on a 3-point victory, the other only pushes
- Similarly, +7 is meaningfully better than +6.5 for underdogs
| Spread | Significance | Betting Strategy |
|---|---|---|
| 3 | Most common margin | Fight hard to stay on the right side of this number |
| 7 | Second most common | Worth paying extra juice to cross |
| 6 | Third most common | Important but less critical than 3 or 7 |
| 10 | Touchdown + FG | Moderate significance, watch for value |
| 14 | Two touchdowns | Less common but still meaningful |
Common Beginner Mistakes to Avoid
Every seasoned sports bettor has made costly mistakes while learning. Here are the most common pitfalls that catch beginners—and how to avoid them from the start.
Betting on Your Favorite Team
It's natural to want to back your team, but emotional attachment clouds judgment. You'll overlook weaknesses, dismiss concerning injury news, and overvalue your team's chances. Many successful bettors have a personal rule: never bet on or against their favorite team.
Ignoring Line Movement
Spreads change between when they're first released and game time. If a line moves from -3 to -4.5, there's a reason—often sharp money or injury news. Beginners often ignore these movements, missing valuable information about where smart money is going.
Chasing Losses
After a losing bet, the temptation to place a larger bet to "get even" is strong. This is called chasing, and it's one of the fastest ways to blow up a bankroll. Stick to consistent bet sizing regardless of recent results.
Betting Every Game
The NFL plays 16+ games every week during the regular season. You don't need action on all of them. Successful bettors are selective, only wagering when they've identified genuine value. Betting for the sake of having action is entertainment, not strategy.
Neglecting to Shop Lines
Different sportsbooks offer different spreads on the same games. One book might have the Packers -3 while another has them -2.5. Over time, consistently getting the best available number adds up significantly. Use multiple sportsbooks and always check for the best line before placing a bet.
Research from betting analysts consistently shows that line shopping can improve your results by 1-2% over time—which doesn't sound like much, but it's often the difference between a losing and winning bettor.
- Never bet more than 5% of your bankroll on a single game
- Don't increase bet sizes after losses
- Keep records of every bet you place
- Take breaks after significant losing streaks
Your First NFL Spread Bet
Let's walk through placing your first NFL spread bet step by step, using a hypothetical Week 10 matchup.
The Scenario
You're looking at:
Buffalo Bills -4.5 (-110) at Miami Dolphins +4.5 (-110)
The Bills are 4.5-point favorites, meaning they need to win by 5 or more points for a spread bet on them to cash. The Dolphins, as 4.5-point underdogs, can lose by up to 4 points (or win outright) for bets on them to win.
Step 1: Research the Matchup
Before betting, gather information:
- Check injury reports on ESPN or team websites
- Review recent performance and trends for both teams
- Consider the location (home-field advantage is worth approximately 1-3 points historically)
- Look at weather forecasts for outdoor games
- Check how each team performs against the spread (ATS record)
Step 2: Determine Your Edge
Ask yourself: Do I have a reason to believe this spread is mispriced? Maybe the public is overreacting to Buffalo's flashy win last week, or undervaluing Miami's defensive improvements. Without a thesis, you're just guessing.
Step 3: Shop for the Best Line
Check 2-3 sportsbooks. You might find:
- Sportsbook A: Bills -4.5 (-110)
- Sportsbook B: Bills -4 (-115)
- Sportsbook C: Bills -5 (-105)
If you like Buffalo, Sportsbook B's -4 is most valuable despite the slightly worse odds, because you win on a 4-point victory instead of pushing.
Step 4: Size Your Bet Appropriately
If your bankroll is $500, a 2% bet would be $10. This conservative sizing means you can weather losing streaks without going broke.
Step 5: Place the Bet and Let It Ride
Once you've made your bet, resist the urge to live bet or hedge. Trust your pre-game analysis and watch the results. Record the outcome in your tracking spreadsheet, noting whether your reasoning was sound regardless of result.
Understanding Line Movement
Once spreads are released—typically early in the week for NFL games—they don't stay static. Lines move based on betting action and new information. Understanding why and how lines move is valuable knowledge for any spread bettor.
Why Lines Move
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Sharp action: Professional bettors ("sharps") place large, well-researched bets. When sportsbooks see respected money on one side, they often move the line.
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Public betting patterns: When heavy recreational money piles on popular teams like the Cowboys or Chiefs, books may adjust spreads to balance their risk.
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Injury news: A starting quarterback being ruled out mid-week can swing a line by 3+ points.
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Weather changes: An incoming snowstorm or high winds can affect totals and sometimes spreads.
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Market correction: Early lines are sometimes deliberately "soft" to attract sharp action and gauge where the market should settle.
When to Bet Early vs. Late
There's no universal answer, but here are guidelines:
- Bet early when you have an opinion before the market has fully formed, or when you expect the line to move away from your position
- Bet late when you want maximum information (final injury reports come out 90 minutes before kickoff) or expect the line to move in your favor
Many recreational bettors default to betting right before kickoff, but this means they're betting into the most efficient, well-informed line. Sometimes early value exists that disappears by game time.
Building Your Spread Betting Foundation
Now that you understand the basics of NFL point spread betting, here's how to continue developing your skills and knowledge.
Start Tracking Everything
Before you bet real money—or with very small stakes—track every potential bet you'd make. Record:
- The game and spread you bet
- The line you got and where
- Your reasoning for the bet
- The outcome
- What you learned
After 50+ tracked bets, you'll start seeing patterns in your decision-making. Maybe you're great at divisional unders but terrible at primetime favorites. This data is invaluable.
Expand Your Knowledge Base
Consider exploring:
- Advanced statistics: Sites like Pro Football Reference and Football Outsiders offer deeper metrics than basic box scores
- Betting theory: Concepts like expected value, closing line value, and Kelly criterion
- Related bet types: Moneylines, totals, teasers, and player props all connect to spread betting fundamentals
Practice Patience and Discipline
The bettors who succeed long-term share common traits:
- They bet selectively, not compulsively
- They maintain consistent bankroll management
- They focus on process over short-term results
- They continuously learn and adapt
- They treat betting as a skill to develop, not a get-rich-quick scheme
NFL spread betting can be an engaging, intellectually stimulating hobby when approached correctly. It can also be financially and emotionally damaging when approached recklessly. The difference comes down to education, discipline, and realistic expectations.
Frequently Asked Questions
Conclusion
NFL point spread betting opens up a world beyond simply picking winners. By requiring favorites to win by a margin and giving underdogs a cushion, spreads create a more nuanced, skill-based form of football wagering.
Remember the fundamentals we've covered: understand what spreads mean and how to read them, respect the power of key numbers like 3 and 7, shop for the best lines, manage your bankroll conservatively, and approach betting as a long-term skill rather than a short-term gamble.
Every successful bettor started exactly where you are now—learning the basics and making small, careful bets while building knowledge. The key is patience, discipline, and a genuine commitment to continuous improvement.
Start small, track everything, and never bet more than you can afford to lose. Welcome to NFL spread betting—may your learning curve be gentle and your early lessons affordable.
Ready to Learn More?
Point spreads are just the beginning. Explore our guides on moneyline betting, over/under totals, and bankroll management to build a complete foundation for NFL betting.
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