Basketball Line Betting Explained

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  • Where to Bet:
  • A losing bet is quite simply you betting on the Cowboys -4.5 and they only win by four. You lose the money that you placed on that bet. A push wouldn’t happen in the example above because a team can’t win by a half point. It is very common, though, to have a betting line of.
  • Basketball Betting Lines Explained Most basketball fans aren’t aware that there are many types of wagers available on basketball. For example, when you bet on the next Boston Celtics game, you aren’t limited to the option of who will win the game.
  • How to Bet NBA & College Basketball - Basketball Betting Explained Single Bet (or Side) The single bet option is done with a point spread. Sports books determine a favorite and an underdog, then assigns each one with a point total.

Point spreads are a way to keep betting lines close even for a lopsided matchup.

How to read NBA Las Vegas Odds

The point-spread was developed to provide a balance for both teams involved in a contest to attract bettors to potentially back the weaker team and receive points. The two squads in a game are listed with a title, either a favorite or an underdog. The favorite is usually the perceived better team in the game, as backing them means giving up several points.

The favorite is always listed with a minus (-) sign before the point-spread while the underdog is labeled with a plus (+) label.

Ex. Favorite -10, Underdog +10

On the VegasInsider.com odds page, there is another number associated with the favorite and its listed as -10. This number is simply defined as “vig” or what many in the sports betting industry call vigorish. Another common term is called “juice” and it’s technically the price the bettor has to pay on a straight wager.

Ex. Bet $110 to win $100 (10% juice)
Ex. Bet $100 to win $91.91 (10% juice)

It's not uncommon to see other values posted other than -10. Examples seen on the NBA Vegas Odds pages could include -08, -12, -15 and -20. The -10 price is the most common value in the industry while many books offer reduced 'juice odds' and that would fall into the -08 category.

The lower-juice sportsbooks are normally found outside of the state of Nevada. If you are in a state where sports betting is legal, please check out our online sportsbook directory to find the best and most secure places to make NBA bets.

Another number that’s posted on the NBA Las Vegas is the total or ‘over/under’ for the specific matchup. If the favorite is designated as the home team, then the total will be listed above and vice versa if the visitors are favorites.

Odds

All of the above numbers are listed next to the teams, and before each matchup is a Rotation number. The NBA Las Vegas Odds are listed in order of rotation and those numbers are generated and produced by the sportsbooks. Above each matchup and rotation is the Time of the game, which is subject to change. All game times are Eastern Standard Time.

NBA Open Line

One of the best features on the NBA Vegas Odds is the Open Line. This numbers consists of the first betting line received from one of our Las Vegas or Global Sportsbooks. The opening line varies depending on the sportsbook but it provides a clear-cut rating that the oddsmakers use. If you’re betting on the NBA or any other sport, it’s a great idea to view the open line first.

Basketball Line Betting Explained

VI Consensus NBA Line

The VegasInsider.com Consensus NBA Line is just as important as the Open Line and also a key resource on odds platform. The Consensus column could be called a “Median Line” since it shows the most consistent number provided by the sportsbooks on VegasInsider.com. The consensus line will be the same as the open line but once the wagers start coming in, this number is often different than the openers.

Betting on NBA Games

Where can I bet on NBA games?

Line Betting Example

There are several legal sportsbook options in the United States. Visit our sportsbook directory to find online sportsbooks where you can bet on the NBA.

Who are the experts picking to win?

Our experts offer picks on all the big NBA games. Check out our 2020 NBA Playoff Predictions or our NBA game picks to see what our handicappers are saying.

What type of bets can I make on NBA games?

Betting the point spread, straight up winner, and over/under point total are the three popular NBA bets. Sportsbooks also first half lines, live betting, and other betting angles.

Who's the favorite to win the NBA Championship?

For odds on where teams will finish in the NBA Playoffs, check out our NBA Futures page.

Basketball line betting explained poker

Can you place parlay bets on NBA games?

Most sportsbooks will allow you to parlay your baskteball bets, meaning you can bet on multiple odds and win a bigger payout if they all win. Check out our parlay calculator to see what your payout will be.


As a fan, you don’t care if your team wins by a point or 100. A win is a win, though that 100-point win would be a little easier on the nerves.

In sports betting, how much a team wins by is usually all that matters.

The most popular way to bet for the two most popular sports, basketball and football, is with the point spread, also known as the “side.” Most baseball, hockey and soccer bets are on the moneyline, which is betting on a team to win straight up with adjusted odds. Football and basketball have moneyline bets available too, but most people will take the point spread.

The concept can be a bit confusing if you’ve never dabbled in sports betting before.

Why bet with the point spread?

The point spread was created to attract more action on a game. When the San Francisco 49ers are expected to blow out the Arizona Cardinals, it’s not enticing to lay $300 to win $100 on a moneyline. But when the 49ers are 11-point favorites and each side is -110 odds? That’s much easier.

In that example, the 49ers are spotting the Cardinals 11 points before the game starts, at least for bettors. The 49ers have to win by 12 or more points to cover the spread. If the Cardinals win or lose by 10 or less, that side wins the bet. If the game lands on 11, like a 21-10 49ers win, it’s a push and all bets are refunded. If you see a -11 that means that team is favored, and +11 means you’re taking the underdog.

Nothing sharpens your math skills better than trying to figure out how big your lead as a bettor is if you have a 22.5-point basketball underdog that is losing 90-72.

The problem with the point spread can be when a team — which really doesn’t care that you bet the favorite at -11 — has a 14-point lead but gives up a meaningless score at the end to win by only seven points. They’re still happy with the win. You, as a bettor, are not.

© Provided by Yahoo! Sports Sportsbooks have large boards that display point spreads for all games that day. (AP Photo/John Locher, File)

Point spreads lead to bad beats

The most infamous example of a bad beat with the point spread probably came in the 2004 Final Four at the NCAA men’s basketball tournament.

Basketball Line Betting Explained Odds

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Duke was a 2.5-point underdog against UConn. The Huskies rallied late and took a 79-75 lead on a free throw with 3.2 seconds left. The game itself was over; Duke couldn’t score twice in a few seconds. But Duke guard Chris Duhon pulled up for a running 3-pointer just over the half-court line and banked it in at the buzzer. Duke lost 79-78, but bettors who had Duke and 2.5 points won. March Madness is a huge event for bettors, and reports at the time estimated that Duhon’s “meaningless” shot resulted in a $30 or $40 million swing in Nevada. UConn players celebrated at the final buzzer. UConn bettors doubled over in pain. That’s the difference between betting the moneyline and the point spread.

Baseball and hockey have point spreads too, the “run line” in baseball and “puck line” in hockey. It’s generally 1.5 with odds adjusting accordingly. Taking a big baseball favorite at -1.5 runs can make the odds more palatable. Of course, betting the New York Yankees at -1.5 to bring down the odds from -190 to -110 isn’t too fun when they win 4-3 and you don’t cash a bet.

Basketball Line Betting Explained Against

Betting on the point spread is the most common way to wager on sports. And the first time you take a favorite that wins the game but doesn’t cover the spread, you’ll understand every bettor’s heartbreak.