Over Under Betting

Your job as a bettor is to bet UNDER 46.5 if you think the combined score will be 46 or less and to bet OVER if you think the combined score will 47 or higher. Imagine the final score is 31-17 for Green Bay – those 48 points are OVER 46.5 so your OVER bet is a winner. If the game is a defensive battle won 17-13 by the Bears, those 30 points. Betting the over/under can be a thrilling way to watch a game even if the game is out of hand but the point total is still on the fence. It can also be infuriating when your under bet appeared to be a clear winner before double overtime cost you the win.

  • Where to Bet:
Line

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.

  • In this case you are betting on whether the score will be over or under the total score (total runs) of 7.5. That is, if the final score was 3-3, then the total runs would be 6, which is lower than 7.5 so the ‘Under’ bet wins. If the score was 4-5, then the total runs would be 9, which is higher than 7.5 and so the ‘Over’ bet wins.
  • OVER/UNDER Explained A sports betting OVER/UNDER is a bet where you have to correctly predict the combined score of both teams. You have to pick if the total score will be lower or higher than the number set by oddsmakers – the people at betting sites who set the lines and odds.

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.

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.

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.

Over under betting strategy

Betting on NBA Games

Where can I bet on NBA games?

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.

Over under betting systems

What type of bets can I make on NBA games?

Under

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.

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.

Over Under Betting Overtime


While not as popular as betting against the point spread in sports gambling, betting the “over/under” isn’t that far behind. Sometimes you may see this as O/U, over-under, over under or simply referred to as “the over” or “the under.”

What does over under mean in betting?

Simply stated, it is the total of the points scored by both teams. While all sports employ an over/under betting option, by far the most money wagered on this bet is in football and basketball. Sports like baseball and hockey offer over/under options, but the vast majority of bets on those sports in based on the established “money line” to pick a winner at a set price.

Under

Unlike a point spread bet in which you are aligning yourself with one team, you’re betting on both teams – either their offenses or the defenses – when betting the over/under. Sports books set over/under scores on games based upon numerous factors.

In the NFL, most over/under scores are set in the low-to-mid 40s.In college football, over/under scores are usually in the high-40 to low 50s – in the Big 12, the land that defense forgot, it can hit the 60s.In the NBA, a typical over/under tends to hover in the 210 range. In college basketball, a standard over/under is between 140 and 155.

The hidden factors that come into play in determining a point spread vary by sport, but have common themes. Recent team history is a primary factor that sports books like to exploit. Sports by their nature are a reflective business based on developing trends from previous games (“getting on a roll”) and, if a football team has scored 40-plus points in three straight games, the over/under is going to be higher because sports bettors tend to believe that trends are going to continue. It’s human nature…until they don’t.

If a critical player – a quarterback in football or a dominant scorer in basketball – is out or playing injured, the over/under will drop.

Other factors critical in setting the over/under number include weather (where applicable), an undefinable history between teams (you know Steelers-Ravens games are going to be physical bloodbaths) and injuries that may not jump out to casual fans that mean a lot sports books are all factors that go into creating and setting an over/under line that will draw an even number of fans to both sides of the number.

The key to betting the over/under is to look at a slate of games without knowing what the over/under is and set what you believe it should be based on your knowledge of those two teams. The ones that differ the most from what you think should be are the ones to place your bets on.

One final note that has been a mantra of those who bet the over/under with some consistency – every game is under until it goes over.

Over/under Betting History

If you’re new to sports betting, start with picking and choosing games you’re convinced should go under and get an understanding of how late-game fireworks can botch your plans.