Football was the biggest earner for Nevada’s sportsbooks over the twelve months to July 2026, at US$184.1 million of win, and most NFL betting runs through one number: the point spread. It turns a mismatch into a near coin flip by handicapping the favourite, and it’s the reason football bettors argue about half-points. A spread of 3 and a spread of 3.5 look almost identical on screen and settle very differently. This guide covers how spreads, totals and moneylines work, when a whole-number line pushes, what buying a half-point costs, and what the margin looks like on football. There’s no Canadian team in the NFL, but there’s no shortage of Canadian bettors on it.
- Spreads handicap the favourite; whole numbers can push, half-points can't.
- Half-points cost money: -110 to -125 lifts break-even from 52.38% to 55.56%.
- Football held 7.29% in Nevada over 12 months to July 2026.
- Super Bowl LXI: February 14, 2027, SoFi Stadium.
The 2026 season at a glance
The defending champion Seattle Seahawks opened the season at home to the New England Patriots on Wednesday, September 9, 2026. That gives bettors 272 regular-season games across 18 weeks before the playoffs, most of them packed into Sundays, which is exactly why staking discipline matters more in football than in sports spread across every night of the week.
How the point spread works
A spread gives the underdog a head start. If the book lists the favourite at -6.5 and the underdog at +6.5:
- A bet on the favourite wins if it wins by 7 or more.
- A bet on the underdog wins if it loses by 6 or fewer, or wins the game.
Both sides are usually priced around -110, decimal 1.909. At that price each side implies 52.38%, the two add up to 104.76%, and the book’s margin is about 4.55%. A C$11 bet at -110 returns C$21 if it wins (C$10 profit). The spread does the work of balancing the two teams; the -110 price is where the book takes its cut. Our moneyline, spread and totals guide covers all three core bet types across sports.
Whole numbers, pushes and half-points
When the spread is a whole number, the game can land on it exactly. Then the bet pushes: your stake comes back, and nobody wins. A favourite at -3 that wins by exactly 3 is a push. At -3.5 the same result is a loss, and +3.5 on the underdog wins.
That’s where key numbers come in. Bettors use the term for margins of victory that turn up more often than others because of how football is scored, so a half-point either side of them changes more outcomes than a half-point elsewhere. We couldn’t source league-wide margin data from a primary source, so we won’t put frequencies on it. The practical takeaway still holds: compare what each book charges for the half-point you want.
Worked example, illustrative: one book has the favourite at -3 for -110, another at -2.5 for -125.
- At -110, break-even is 110 / 210 = 52.38%.
- At -125, break-even is 125 / 225 = 55.56%.
You’re paying 3.18 percentage points of win rate for the half-point. It only pays off if the game lands on exactly 3 often enough to cover that, and nobody publishes that number for you. The odds converter shows the implied probability of any price, so you can run this check on a live line.
Spread or moneyline: two prices
The spread and the moneyline on the same game often carry different margins, so it pays to check both. Illustrative board for one game:
- Spread: favourite -6.5 and underdog +6.5, both at -110 (1.909). Implied 52.38% + 52.38% = 104.76%. Margin about 4.55%.
- Moneyline: favourite -280 (1.357), underdog +230 (3.30). Implied 73.68% + 30.30% = 103.99%. Margin about 3.83%.
Computed by us; prices illustrative. Margin = 1 - 1/(sum of implied probabilities).
In this example the moneyline is the cheaper market, even though the spread looks like the “standard” bet. On another game, or at another book, it can go the other way. The habit worth building is to add up the implied probabilities on both markets before choosing one; the side of the bet you like stays the same, but the price you pay for it doesn’t.
🧮 Totals and how they push
A total (over/under) is a line on the combined score of both teams. Whole-number totals push the same way spreads do. Here’s C$20 at decimal 1.909 on the over, on two different lines:
| Final combined score | Over 44 | Over 44.5 |
|---|---|---|
| 45 or more (e.g. 24-21) | Wins: C$38.18 returned | Wins: C$38.18 returned |
| Exactly 44 (e.g. 24-20) | Push: C$20 returned | Loses: C$0 |
| 43 or fewer | Loses: C$0 | Loses: C$0 |
Computed by us: return = stake x decimal odds.
Totals are also where the Canadian game diverges. The CFL changed how some points are scored in 2026 and changes its field in 2027; our CFL betting guide covers what that means for its totals.
The moneyline and heavy favourites
The moneyline drops the spread and asks one thing: who wins. Favourites carry negative American odds, underdogs positive ones.
- -400 is decimal 1.25, implied 80.0%. Stake C$40 to make C$10 profit.
- +300 is decimal 4.00, implied 25.0%. Stake C$10 to make C$30 profit.
Big favourites on the moneyline pay so little that a single upset wipes out several wins. That’s what pushes bettors toward combining them in parlays, which brings its own problem: the margin compounds with every leg. Two -110 legs carry about 8.88% built-in edge, four legs about 16.98%. The parlay betting guide explains why, and the parlay calculator shows the true hit rate before you place one.
What books keep on football
Nevada’s regulator reports how much its sportsbooks keep by sport. Over the twelve months to July 2026, football sat just under the all-sports average:
🧮 Sportsbook hold by sport, Nevada
| Hockey | 8.73% |
|---|---|
| All sports | 7.69% |
| Football | 7.29% |
| Baseball | 6.85% |
| Basketball | 6.78% |
Football’s 7.29% hold is higher than the 4.55% margin on a single -110 spread bet. The difference comes from the mix: parlays, futures and props carry more margin, and results swing from season to season. Our bookmaker margin guide explains why hold and margin differ.
Props, futures and same-game parlays
A same-game parlay combines several legs from one game, such as a quarterback’s passing yards plus a team to win. The legs are correlated (a big passing day and a win tend to go together), so books reprice them rather than simply multiplying the odds. No regulator or book publishes the margin on those combinations. Our props and futures guide covers player markets in more depth.
Futures on the Super Bowl hold your stake from the day you bet until February 14, 2027. In an illustrative four-team futures market priced at 3.00, 3.50, 4.00 and 4.50, the implied probabilities add up to 109.13%, a margin of about 8.36%, close to double the margin on a -110 spread. A real Super Bowl market lists every team, so check the total of the implied probabilities across the board before you pick one: the higher it climbs above 100%, the more the book keeps. Money in a futures bet also can’t be used for anything else for months, which matters if you’re working to a fixed bankroll.
🍁 Betting the NFL from Canada
Our football betting page covers both the NFL and the CFL, and the betting sites list ranks sportsbooks for players aged 19 or over outside Ontario and Alberta. Current welcome offers are on the sports bonus page. In British Columbia, Saskatchewan and Manitoba, PlayNow is the provincial option; in Quebec, it’s Mise-o-jeu.
An 18-week season is long, and small numbers add up. Worked example, illustrative: a C$500 bankroll, a 1% unit of C$5, and five bets every week. That’s 90 bets and C$450 of stakes by the end of the regular season. At a 4.55% margin the average cost is about C$20.48, before parlays or futures raise it. Raise the unit to 5% and the same habit turns over C$2,250 and costs about C$102 on average. Our bankroll guide shows how to size bets so a bad month doesn’t decide the rest of the year, and the responsible gambling page lists every provincial helpline.
FAQ
What does -3 mean in NFL betting?
It's the point spread on the favourite. A bet on the -3 side wins if the team wins by 4 or more, pushes (stake returned) if it wins by exactly 3, and loses otherwise. The underdog at +3 wins if it loses by 2 or fewer or wins outright, and also pushes on an exact 3-point loss.
What are key numbers in NFL betting?
Bettors use the term for winning margins that come up more often than others because of how football is scored, which makes half-points around them worth more. We couldn't pull league-wide margin data from a primary source, so we don't quote frequencies. Treat it as a reason to compare prices on the half-point, not as a rule.
How much does buying half a point cost?
It depends on the price. Illustrative example: moving from -3 at -110 to -2.5 at -125 raises the share of bets you must win to break even from 52.38% to 55.56%. Whether that's worth it depends on how often the game lands exactly on 3, which no book will tell you.
When is Super Bowl LXI?
Super Bowl LXI is on February 14, 2027, at SoFi Stadium in Inglewood, California. The 2026 regular season kicked off on Wednesday, September 9, with the defending champion Seattle Seahawks hosting the New England Patriots, and runs 18 weeks and 272 games.
Is the NFL moneyline better than the spread?
Neither is better in itself; they answer different questions. The moneyline asks who wins, the spread asks by how much. Heavy favourites on the moneyline pay little: -400 is decimal 1.25, a C$1 profit for every C$4 staked. The spread evens the price out by handicapping the favourite.
