How to Read NFL Odds Week 1: Spreads, Totals and Moneylines Explained

A minus sign means favourite. A plus sign means underdog. Almost everything else on a how to read nfl odds week 1 board follows from those two rules.

If you have looked at a line like Seahawks -3.5 (-110), O/U 44.5 and not known where to start, this guide breaks down every part of it in plain English. No jargon, no assumed knowledge.

The Three Bets You Need to Understand

Almost every NFL odds page is built from three markets. Learn these and the rest is detail.

Bet type	What you are betting on
Point spread	The margin of victory, not just who wins
Moneyline	Simply which team wins, margin irrelevant
Total (over/under)	Combined points scored by both teams

Point Spreads

The spread is a handicap. Sportsbooks apply it to make an uneven matchup an even bet.

Say a team is listed at -7. That team is the favourite and must win by more than 7 points for your bet to win. The opponent is listed at +7 and is the underdog. A bet on them wins if they either win outright or lose by fewer than 7.

What the half point does

You will see a lot of spreads ending in .5, like -3.5 or -7.5. That half point exists to eliminate ties.

If the spread is -7 and the favourite wins by exactly 7, that is a push and your stake is returned. Nobody wins. Add the half point and there is no possible tie, because a team cannot win by 7.5 points.

Why 3 and 7 matter more than other numbers

NFL games are decided by 3 points and 7 points more often than any other margin, because of field goals and touchdowns with the extra point.

That makes those the key numbers. Moving from -3.5 to -3 is a much bigger change than moving from -4.5 to -4, even though both are half a point. At -3 you can push. At -3.5 you cannot, and a three-point win loses.

Moneylines

The moneyline strips out the margin entirely. You are betting on who wins, full stop.

Prices are shown as a number with a plus or minus:

• Minus figure, for example -180. This is the favourite. It shows how much you must stake to win $100. At -180 you risk $180 to win $100.
• Plus figure, for example +155. This is the underdog. It shows what a $100 stake returns in profit. At +155 a $100 bet returns $155 profit.

You do not have to bet $100. That is just the reference amount the format uses. The same ratio applies at any stake.

When a moneyline makes sense

Moneylines are most useful when you are confident a team wins but not confident they cover. If you think an underdog can win outright, the moneyline pays far more than taking the points on the spread.

Totals, or the Over/Under

The total is the combined score of both teams. The sportsbook over/under posts a number and you bet whether the real total finishes above or below it.

If the total is 44.5 and the game finishes 27-20, that is 47 combined points. The over wins. It does not matter which team won.

Totals reflect expected scoring environment: offensive quality, defensive quality, weather, pace and sometimes the venue. A total in the low 40s signals a game the market expects to be tight and low scoring. Anything above 50 signals a shootout.

The Number in Brackets: Juice

Next to most spreads and totals you will see a second number, usually around -110.

That is the price, often called the juice or the vig. It is how the sportsbook makes money. At -110 you risk $110 to win $100, which means you need to win roughly 52.4% of your bets just to break even.

This matters more than most beginners realise. A -3.5 at -105 and a -3.5 at -120 are not the same bet, even though the spread is identical. Over a season, consistently taking the worse price costs more than most individual bad picks do.

Reading a Full Line

Here is a typical listing broken into parts:

Patriots +3.5 (-110) | +160 | O/U 44.5 (-110)

• +3.5 is the spread. New England is the underdog and can lose by up to 3 points and still cover.
• (-110) is the price on that spread. Risk $110 to win $100.
• +160 is the moneyline. A $100 bet returns $160 profit if New England wins outright.
• O/U 44.5 is the total. Bet over or under 44.5 combined points.

The favourite in that game would be listed at -3.5 with a corresponding minus moneyline.

Line Movement: What It Tells You

Read nfl odds week 1 are not fixed. They move from the moment they open until kickoff, and the movement carries information.

• Where a line opened reflects what the sportsbook’s model calculated.
• Where it sits now reflects where the money has gone and what news has landed.
• A line that flips direction, for example from one team being favoured to the other, is a bigger signal than a line that simply drifts a point.

Injury news moves NFL line movement more than anything else, and it moves them hardest in Week 1 when there is no game action to offset it.

Five Habits That Matter More Than Picks

• Shop the line. Different books post different numbers. Half a point compounds across a season more than any single pick.
• Check the price, not just the number. Two identical spreads at different juice are different bets.
• Respect the key numbers. 3 and 7 are where NFL games actually land.
• Know when to pass. Having no opinion on a game is a legitimate position, not a failure.
• Set a budget before you look at the board. Decide what you are prepared to lose, then stick to it regardless of how a slate goes.

Common Terms in One Place

Term	Meaning
Cover	Beating the point spread
Push	A tie against the spread or total. Stake returned
Juice / vig	The sportsbook’s built-in margin, usually shown as -110
ATS	Against the spread, a team’s record versus the line
SU	Straight up, a team’s win-loss record ignoring the spread
Chalk	The favourite
Key numbers	3 and 7, the most common NFL margins
Parlay	Multiple bets combined. All must win to pay out
Prop	A bet on a specific player or event rather than the result

Ready to apply it? Our current “read nfl odds week 1” page has the full board of spreads, totals and moneylines for every game this week.

Frequently Asked Questions

What does -3.5 mean in NFL odds?

That team is favoured by 3.5 points. They must win by 4 or more for a spread bet on them to win. The half point removes the possibility of a tie.

What does a plus sign mean in betting odds?

A plus sign marks the underdog. On a spread it is the points the team is being given. On a moneyline it is the profit a $100 stake would return.

What is the difference between the spread and the moneyline?

The spread is a bet on the margin of victory. The moneyline is a bet on who wins, regardless of margin. Underdogs pay considerably more on the moneyline because winning outright is harder than covering.

What does over/under mean in NFL betting?

It is the combined points scored by both teams. You bet whether the real total finishes above or below the posted number. Which team wins is irrelevant.

What does -110 mean?

It is the price on the bet. You risk $110 to win $100. That built-in margin is how sportsbooks profit, and it means you need to win about 52.4% of bets to break even.

Why do NFL odds change?

Sportsbooks adjust to balance money on both sides and to reflect news, especially injuries. Where a line opened tells you what the model thought. Where it sits now tells you what the market thinks.

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This guide is for informational purposes only and is not betting advice. You must be 21 or older and physically located in a state where sports betting is legal to place a wager. Only use licensed sportsbooks. Never bet more than you can afford to lose. Please gamble responsibly. If gambling stops being fun, call 1-800-GAMBLER for confidential support.