NFL Betting 101: Spreads, Totals, and Props

The NFL is the king of sports betting in North America. More money is wagered on football than any other sport, and the betting markets are deep, varied, and endlessly debatable. Whether you're new to NFL betting or looking to sharpen your approach, here's a comprehensive breakdown.

Point Spreads and Key Numbers

NFL spreads work the same as other sports — the favorite gives points, the underdog gets points. But football has unique "key numbers" that make certain spreads far more significant than others.

The magic numbers are 3 and 7. Roughly 15% of NFL games land on a 3-point margin (field goal) and about 6% land on exactly 7 (touchdown). That means the difference between getting +3 and +2.5 is enormous — it's not half a point, it's the difference between pushing on 15% of all games versus losing them.

Example: Bills -3 (-110) vs. Jets +3 (-110). If the Bills win by exactly 3, it's a push. But if you got Jets +3.5, you'd win that bet. Never accept worse than +3 if you're on the underdog side — shop for the half-point. On BetMetrics, you can instantly see which book offers +3.5 versus +3.

Other key numbers: 6, 10, 13, and 14 also appear at elevated rates. Any time a spread crosses one of these thresholds between books, that's a meaningful difference worth shopping for.

Totals in the NFL

NFL totals typically range from 37 to 54 points depending on the matchup. Weather is a factor that doesn't exist in indoor sports — wind over 15 mph, rain, and cold temperatures measurably suppress scoring.

Where to find edges: Divisional rivalries trend under, especially late in the season when teams know each other's tendencies. Primetime games (Thursday Night Football, Monday Night Football) historically trend under as well — scoring drops about 2-3 points on average compared to Sunday afternoon games.

Check the weather. Before betting any total, look at the forecast for outdoor stadiums. A game in Green Bay with 20 mph wind gusts in December is a fundamentally different proposition than the same matchup in a dome.

Teasers

Teasers are a modified parlay where you get extra points on each leg in exchange for lower payouts. The standard NFL teaser gives you 6 extra points on two or more legs.

The Wong Teaser: Named after Stanford Wong, this is the only mathematically sound teaser strategy. Tease favorites of -7.5 through -8.5 down through the key number of 3 (to -1.5 or -2.5), or tease underdogs of +1.5 through +2.5 up through the key number of 7 (to +7.5 or +8.5). These "cross-key-number" teasers have historically won at rates that overcome the reduced payout.

When teasers don't work: Teasing small favorites (-1 to -3) or large underdogs (+10 or more) does not cross key numbers efficiently. The math only works when you're moving through 3 and 7.

The Prop Market Explosion

NFL player props have become the fastest-growing segment of sports betting. You can bet on rushing yards, receiving yards, touchdowns, completions, interceptions, and dozens of other statistical outcomes for individual players.

Touchdown scorer props are the most popular but carry the highest vig. Anytime touchdown scorer odds look enticing (+200, +300), but the implied probabilities are usually 5-10% worse than fair value. Books make their biggest margins here because the public loves betting on their favorite player to score.

Yardage props offer more exploitable value. Rushing and receiving yard lines are set based on season averages, but game context matters enormously. A running back averaging 65 yards per game might face a bottom-5 run defense that gives up 140+ yards per game. The book adjusts the line somewhat, but often not enough — especially for less-publicized players.

Passing props correlate with game script. If you expect a team to trail, their quarterback will throw more. If you expect a blowout, the winning team's QB throws less in the second half. Combine your game prediction with player props for an edge.

Practical Tips

Bet early in the week. NFL lines move significantly from Tuesday opening to Sunday kickoff. If you have a strong opinion, the early line usually offers better value before sharp money and public action shift it.

Respect the bye week. Teams coming off a bye week have an extra week to prepare and rest. They cover at a slightly elevated rate historically — roughly 52-53% ATS, which matters over volume.

Avoid parlays on correlated NFL events. If you parlay a team's moneyline with the over, those outcomes are correlated (winning teams score more). Books don't always adjust for this, but the correlation means your true odds are better than displayed — though the house still holds an edge.

Compare NFL odds across every major sportsbook on BetMetrics to always get the best number on every game.