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.

Reading Point Spreads
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.

50%
The Goal for Sportsbooks
Oddsmakers aim to set spreads that attract equal money on both sides, not necessarily predict exact margins

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.

Understanding Break-Even Math
At -110 odds, betting $110 to win $100 means your break-even win rate is 52.38%. This small edge is how sportsbooks stay profitable, and why casual bettors typically lose money over time.
0 of 5 completed 0%
  • Verify your sportsbook is licensed in your state through your state gaming commission's website

  • Only bet money you can afford to lose, kept separate from living expenses

  • Most experts recommend betting 1-5% of your bankroll per wager

  • Practice identifying favorites, underdogs, and spreads before placing real bets

  • 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.

3
The Most Important Number
Approximately 15% of all NFL games are decided by exactly 3 points

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:

  1. 3 points (~15% of games) - One field goal difference
  2. 7 points (~9% of games) - One touchdown difference
  3. 6 points (~5% of games) - One touchdown, missed extra point
  4. 10 points (~5% of games) - Touchdown plus field goal
  5. 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
Pro Tip
When shopping lines between sportsbooks, prioritize getting the best number when spreads sit on or near 3 and 7. Paying slightly worse odds (-115 instead of -110) to move from -3 to -2.5 is often worthwhile.
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.

Watch Out
Betting with your heart instead of your head is the fastest way to drain your bankroll. Your favorite team isn't automatically a good bet.

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.

Bankroll Protection Rules
  • 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.

Pro Tip
Keep notes on your betting decisions. Write down why you made each bet before the game. This helps you learn from both wins and losses by separating good process from lucky outcomes.

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

  1. Sharp action: Professional bettors ("sharps") place large, well-researched bets. When sportsbooks see respected money on one side, they often move the line.

  2. Public betting patterns: When heavy recreational money piles on popular teams like the Cowboys or Chiefs, books may adjust spreads to balance their risk.

  3. Injury news: A starting quarterback being ruled out mid-week can swing a line by 3+ points.

  4. Weather changes: An incoming snowstorm or high winds can affect totals and sometimes spreads.

  5. Market correction: Early lines are sometimes deliberately "soft" to attract sharp action and gauge where the market should settle.

Opener vs. Closer
The "opening line" is the first spread released, usually Sunday or Monday for the following week's games. The "closing line" is the final number at kickoff. Consistently beating the closing line is considered the gold standard for measuring betting skill.

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
Watch Out
Beware of "guaranteed picks" services or tipsters promising unrealistic win rates. No one wins 70% of NFL spread bets consistently. If they did, they'd be betting their own money, not selling picks.

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

This is called a "push." If the spread is -3 and the favorite wins by exactly 3 points, all bets are refunded. Neither side wins or loses. This is why you often see half-point spreads (like -3.5)—to eliminate the possibility of pushes.

Half-point spreads (like +6.5 or -2.5) exist to prevent pushes. Since you can't score half a point in football, one side will always win. Sportsbooks sometimes offer to "buy" half points for additional vig, moving -3 to -2.5 for example.

These numbers represent how much you need to bet to win $100. At -110, you bet $110 to win $100. At -115, you bet $115 to win $100. The difference may seem small, but over many bets, consistently getting -110 instead of -115 significantly impacts your bottom line.

Yes, this is called live betting or in-game betting. Spreads adjust in real-time based on the score and game situation. Live betting adds excitement but is generally harder to beat because lines update so quickly with new information.

Oddsmakers use a combination of power ratings, statistical models, historical data, and market experience. Opening lines aim to predict where the market will settle while accounting for expected public betting patterns. Sharp bettors often target openers before the market corrects.

Covering means your team beat the point spread. If you bet on the Eagles +7 and they lose 24-20 (by 4 points), they covered because they stayed within 7 points. If the Cowboys were -7 and won 28-21 (by 7 exactly), that's a push—they didn't cover but didn't fail to cover either.

Parlays combine multiple bets and offer bigger payouts, but all selections must win. While tempting, parlays have higher house edges than straight bets. Most professional bettors avoid them or use them very sparingly. As a beginner, focus on straight spread bets to learn the fundamentals.

Each sportsbook manages its own risk and receives different betting action. One book might have more Chiefs fans as customers, pushing that line differently. These differences create opportunities for line shopping—finding the best available number before placing your bet.

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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