Because the spread is intended to create an equal number of wagers on either side, the implied probability is 50% for both sides of the wager. To profit, the bookmaker must pay one side (or both sides) less than this notional amount. In practice, spreads may be perceived as slightly favoring one side, and bookmakers often revise their odds to manage their event risk.
When you see a moneyline value associated with the point spread, it is the percentage amount you must pay in order to book the bet. Also known as the juice or vig, if you see -11.5 (-115), it means you have to bet $115 to win $100 — a 15 percent commission for the sportsbook. The underdog may see a value such as +11.5 (+105), which means you’ll have to bet $100 to win $105 if your team successfully covers the spread.
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For example: If it is universally believed that Alaska State is better than Hawaii Tech, a standard win/loss wager wouldn't work, since most likely people would bet more money on Alaska State. Therefore, the Sports Book could put the point spread on Alaska State at 6.5 points. This would mean if you bet on Alaska State, not only would they have to win the game, they'd have to win by at least 7 points to make you a winner, otherwise a ticket on Hawaii Tech, even though the team might have loss, would be a winner.
There are very few (if any)people in this world that have the ability to predict the future. I'm thinking maybe some of the prophets who lived hundreds of years ago and maybe the person who writes for The Simpsons since they seem to get every world event nearly spot on. Sports bettors like to think they are in that class which is why sportsbooks give bettors the option to place a Future Bet. A future bet is a bet that is made well in advance of the culmination of any sporting season or world event that is set to occur - think Super Bowl and thePresidential Election. Read More >>
To show how this can be exploited, take a point spread of -8.5 at odds of -110. This is a 50/50 proposition. Let's assume you've purchased enough points to move the spread to -6.5 at odds of -150. Now, you'd win instead of lose 6.24% of the time they win by 8, and 6.59% of the time they win by 7. Add these together with the 50% from the original proposition, and we get 62.83%.
The odds and lines for football games are not always the same at every bookmaker. They don't tend to vary by a lot, but they do vary. It's very much in your best interests to always try to place wagers where you can get the best value. A half point difference on a spread or a couple of points difference on the odds may not seem like a big deal, but over time these small differences can add up. By opening accounts with a few different sites, it's easy to shop around for the best odds and lines. This is one of the best ways to maximize potential profits.
Like many high scoring sports, NFL wagering is dictated by the point spread. The spread, or line, is a type of side bet that equalizes the chance of winning a wager. The line offered for any given team will be accompanied with a – or + symbol to indicate whether a team is a favorite or an underdog. The example below displays the spread from the Sports Insights archives at the time of kickoff:
When the point spread was invented in Chicago by Charles McNeil the money line took a backseat. When two unevenly matched teams played, the playing field was leveled by having the favorite give points (for example Chicago Bears –7) while the underdog got points (Minnesota Vikings +7). No matter which team the bettor took the bettor would always risk $110 to win $100. The extra $10 needed to win $100 is called the juice or the vig, it is basically the house’s or the bookie’s take. It’s 10-percent of the bet so it would take $33 to return $30 and $440 to return $400 etc. (winning bettors get the vig back).
The key here is to target the point spread five and seven, because these are virtually tied as the most common margins of victory. It's important to recognize that most betting sites are only willing to sell 2 or 3 half points for 10 cents each, after which point they start charging more. Some sites sell up to four half points at this price though.
You can also bet straight winners and losers -- with no point spreads involved -- with money line wagers. When there is a minus number you bet that amount to win $100 in profit. When there is a plus number, that is your winning profit for every $100 wagered. So if the Cowboys have a money line of -250, you would have to bet $250 on them to win $100 in profit on any Dallas victory. If the Giants had a money line of +150, you would win $150 in profit with a winning $100 bet. If a money line is posted as even, you would win a $100 profit on a $100 winning bet.
This is because bookmakers are in business to make a profit, so they effectively charge a commission for taking wagers. This commission is known as the vig, short for vigorish, and it's one of the ways that bookmakers stay profitable. They don't charge it just for points spreads and totals either, as it's built into the odds for every wager that they offer.
Understand that negative odds indicate how much money your must spend to make $100. When betting on the favorite, you take less risk, and thus earn less. When betting on a favorite, the moneyline is the amount of money you need to spend to make $100 profit. In the previous example, in order to make $100 of profit betting for the Cowboys, you would need to spend $135. Like positive odds, you earn back your bet when winning.
Here in this point spread example for the NFL, the Falcons are playing the Panthers. Atlanta has been set as a three-point favorite on the betting line. That means that for Atlanta to cover the spread that has been set, they will need to win by at least four points. And for Carolina to cover the point spread, they can do so with a loss by two points or less, or obviously a win straight up. If the Falcons win by exactly three points, the bet would result in a push with no payouts.
The one variance you might come across in any pointspread listing is the commission owed on a bet. Instead of moving the actual spread for a game, some books will try and direct money one way or the other by adjusting the juice. For example, if there was a (-120) next to the listed pointspread, you would now owe $120 on a losing $100 bet. Sometimes a book will reduce or eliminate the juice all together to move money towards a particular side of a matchup. In this case, you might see (-105) or (+100) next to the pointspread to signify the reduced or zero commission for that bet.
If you're seeing 15 or 25 instead of 15/1 or 25/1, you're seeing a decimal form of odds, as opposed to fractional. Multiplying your stake by decimal odds gives your total return, not your profit(which is total return -stake). To get to fractional from decimal, add 1. So 3/1 fractional = 4 decimal (just 4). 4/6 frac = (4/6+1) dec = 10/6 = 5/3, or 1.666, which is rounded to 1.67 by bookies. To go from decimal to fractional, subtract 1(which makes sense from profit = total return - stake) So 15 dec = 14/1 frac. 2.33... dec = 1.33/1, or 133/100.
The most common NFL spreads are usually set between about 2.5-10.5 points, but you will also almost always have games each week with spreads lower than 2.5 and higher than 10.5. In the event that the oddsmakers feel the game doesn’t need a spread, it would be set at 0 or what some call a pick’em (both teams are given even odds to win for this type of bet).
As an illustration, let's look at Super Bowl futures. Sports books list each NFL team with corresponding odds to win the Super Bowl. For example, the Ravens may be 5-1, the Redskins 12-1, the Cardinals 100-1, etc. If you place $10 on the Redskins and they go on to win the Super Bowl, you collect $120 plus your $10 back for a total payoff of $130. It does not matter whether your team covers the point spread in the Super Bowl. For the purposes of future book betting, the team has to win only the Super Bowl.
The second number in our example (-110 for both teams) tells you how much you have to wager in order to win $100. It’s an easy way to calculate how much you’ll win if your bet pays off, presented in units of $100 at a time for simplicity’s sake. Most of the time, these two numbers will be the same, because oddsmakers want to set lines so that they get as much action on the underdog as on the favorite, guaranteeing them a profit. If a book gets a single bet of $110 (by a customer hoping to win $100) on the Cowboys and a single bet of $110 on the Giants, it will have taken in $220, but will only have to pay back $210 to whichever customer wins the bet. That’s a guaranteed profit of $10, and since sportsbooks take far more than a single bet in either direction, they stand to earn that seemingly small amount of profit many times over. The $10 difference between what you wager and what you win is known as juice or vig in the sports betting industry, and it’s the way books earn their bread and butter.
It's also important to consider whether or not there's any correlation between the point spread and the betting total. If they are, a parlay wager is a good way to get maximum value. For example, a college football point spread +24.5 parlayed with under 48 points in the same game might be a great parlay bet. If the +24.5 team covers the point spread, then there's an increased chance that the game also goes under the posted total of 48.
The point spread, which is sometimes referred to as the “handicap”, is the number of points taken from the favorite, or given to the underdog, in order to open up the chances of either team winning the wager evenly. In most games, there’s usually a team that is more likely to win, based on a number of statistical factors. If the only kind of wager available was on who would win between a very strong team and a poor team, it wouldn’t be all that exciting. The point spread was designed to make betting much more interesting, since it allows a bet on the losing team to win you money. How? Let’s break down an example:
Head-to-Head. In these bets, bettor predicts competitors results against each other and not on the overall result of the event. One example are Formula One races, where you bet on two or three drivers and their placement among the others. Sometimes you can also bet a “tie”, in which one or both drivers either have the same time, drop out, or get disqualified.
As you can see, there’s another number in our example above. The –110 in parentheses refers to the juice; this figure is expressed in the same fashion as moneyline odds, with either a negative or positive sign in front of the number. In this case, in order to place a wager on either side, you would have bet $110 to win $100. If the juice on Kansas City had been +110, you would have bet $100 to win $110. Most NFL game lines ask you to pay the standard –110 vigorish. If you don’t see any particular figure attached to the spread, the usual –110 vig applies.
The 3-digit numbers to the far right are the listed prices for these bets. This is also called the odds, vig, or juice. An easy way to think of it is the amount you must risk to win $100 on this wager. In our example, -110 means you must risk $110 if you want to win $100. -110 is pretty standard, but you will find different options. We will cover those in more depth when we talk about money lines. The price of the bet has no impact on which team is favored. Only the plus or minus on the point spread matters. This is handled differently when you bet strictly on the moneyline.
Another way to beat football point spreads is to shop for off market prices. For example, let's say you're shopping online betting sites and see every site is offering Vikings +7.0. Then, you stumble upon one site that's offering +7.5. There's a good chance that this is a +EV wager, simply because it is out of sync with every other site. Please note that this strategy isn't quite the same as simply shopping for the best lines. Here, you're specifically looking for wagers that are +EV because they're against the market.
Let’s start with the basics: what do sports bettors mean when they talk about a ‘line?’ The word line, in the language of a sportsbook, can refer to either the odds and/or a point spread in any sports contest. Let’s take a look at an imaginary line the way you’d read it off the board sitting in a Vegas sports betting lounge or on the screen at your online book. Let’s imagine a game between the New York Giants and the Dallas Cowboys. Your book’s NFL betting line might look something like this:
There's another reason to bet the underdogs on the moneyline as well. If your handicapping has made you feel very strongly that a poor team is due for a big win then the moneyline allows you to profit much more handsomely from your conclusion than a point spread bet does. The moneyline, then, is a powerful situational tool for people who closely follow the NBA.
Bookmaker's interest - In order to guarantee a profit for the house, a bookie needs to create even action on both sides of a particular game. In a perfect world the bookie would have 50 percent of the handle come in on the underdog and 50 percent on the favorite. This ensures that the sports books are guaranteed a profit because of the 10 percent commission or "vigorish" charged on most sports wagers. This is why there is "movement" on the point spread. If one side on a game is being bet more heavily, the bookie must move the number in order to attract interest on the other side in order to balance action.
However, there are some good values with teaser bets if you know how and where to find them. For instance, the six-point teaser is an especially effective bet in the NFL, where most games are tightly contested and six points can make a world of difference. For instance, in our previous example, the Bears would go from laying six points to simply needing to win if you put them on a teaser bet. Conversely, Detroit backers could get 12 points instead of the starting six. (Source: Doc's Sports Service)
Several additional states such as Louisiana, Connecticut, Mississippi, Maryland, Massachusetts, Missouri, California, South Carolina, Iowa, Illinois, Kansas, Kentucky, Indiana, Michigan, Minnesota, Oklahoma, Ohio, New York, and West Virginia, began drafting bills to legalize sports betting soon after New Jersey and Delaware. Pennsylvania, Rhode Island, and West Virginia were able to pass legislation legalizing sports betting within their states.
For those that live outside the United States, this may look even more strange since -110 is in American odds format. In Decimal odds, which is common in Europe, -110 translates to 1.91 odds. I'm not going to dive into Decimal odds (or other formats) since this article is about American odds, but the Decimal system is pretty straightforward. The odds listed represent a bettor's total return for a winning wager as you simply multiply the odds by the amount you wish to risk. If someone risks $100 at 1.91 odds and win, they receive $91 plus their initial $100 risked ($91 + $100 = $191).
If you've ever found yourself cursing the game line or completely dumbfounded at how a basketball total from the Serbian basketball league lands right on the "over/under" number, I can assure you that you are not alone. Setting the right number is the heartbeat of any sportsbook which is why they hire the sharpest minds in the betting game and task them with calculating the lines. It's not often you come across a line that is far off from what actually happens in the game. Sportsbooks have the utmost trust in their linemakers, so that when they post their lines to the betting public they aren't vulnerable to big losses. Read More >>
Wagering on the NFL revolves around the point spread in which one team is designated the favorite and the other team is called the underdog. The NFL point spread sets a specific number of points that the favorite must win by in order for a person betting that particular team to win their wager. Lets use an example from last week's NFL slate to demonstrate the art of NFL point spreads. This past weekend the New England Patriots played the Seattle Seahawks. The Patriots were four point favorites in that game. So in your local newspaper, you might have seen something similar to this illustration.
Another form of futures betting involves the over/under on the number of games a particular team will win in the regular season. This type of wager is typically found on pro football and major league baseball, and sometimes on pro basketball. For example, the over/under on the Yankees may be 93 wins. If the Yankees go on to win 94 or more games, the "over" is a winner. If they win 92 or fewer games, the "under" is a winner. If they win exactly 93, the bet is a push and tickets are refunded.
The negative (-) sign indicates that the Cowboys are the favorites, while the positive (+) sign indicates that the New York Giants are the underdogs. With the spread set at 2.5 points, a bet on the Cowboys would mean that they would have to win by more than 2.5 points (3 or more) in order for you to win that bet. A bet on New York would mean that the Giants would have to either lose by 2.5 or less points (2 or less) or win the game outright in order for your bet to win.
Pools, cards, and parlays - A parlay is just a combination bet. Instead of making five separate bets on five different games, the bettor places a single parlay bet, hoping he or she can predict the outcome of all five games. If any one of the games is a loser, the entire parlay is a loser. The payout is better for parlays, because the odds of successfully picking multiple winners are much tougher to beat [ref]. Most people are familiar with parlays through office betting pools or football cards. If you've ever paid $5 to select your winners from a list of that week's football games (sometimes using the spread, sometimes using the straight scores) in hopes of winning the weekly prize, then you have made an informal parlay bet. Office pools don't usually involve actual bookies beyond the person who organizes the pool, and no one takes juice from the pool. All the money is distributed to the winner or winners.
82 games per year means a lot of opportunities to wager on your favorite teams and Sportsbetting.ag sees that opportunity and gives you what you want to bet on. Sometimes this means having spreads for big games a day or two in advance, especially if both teams are off the day before the big matchup. They take care of their NBA bettors... give them a shot.
The concept of betting on totals, or Over/Under (O/U), is quite simplistic. The bettor wagers on whether the TOTAL points scored in a game will fall over or under a pre-determined number set by the sportsbook. Much like the point spread, game totals can be swayed by public opinion. The example below, from the SI Archive, shows the opening totals line for Superbowl XLV:
The most important thing you can teach yourself early on is: "Just because the books assign one side to be the favorite (even large, -200 or -300, favorites), does not mean that they will win." We have all seen favorites get upset, and it is important to avoid the temptation of finding comfort in the fact that the lines makers put one team as a favorite.
A point spread - Lets take, for a hypothetical situation on one of the types of football bets (using the point spread), that the Kansas City Chiefs were visiting the Detroit Lions and Detroit was established as a six-point favorite at game time, which is commonly written as Detroit -6. Kansas City would be the underdog and displayed as Kansas City +6. If you bet the favorite, Detroit has to win by more than six points to win your bet. Remember, the Lions are favored by six points, so we subtract six points from their final score on a spread bet. If Detroit were to win 27-20, Lions bettors would win their wager. If the Chiefs were to win the game by any score and you picked the Chiefs you would win not including the extra six points. If the Lions were to win, 20-14, it would be exactly six and a push, so you would get your money back.
For example, in NFL wagering you’ll have a pool of 12-14 quarterbacks, running backs, etc. and you can choose who will have the most fantasy points, 2nd most fantasy points, 3rd most fantasy points. Each player starts the week with certain odds that change as money wagered on different players. Your payout is based on the closing odds like parimutuel horse wagering.
As already mentioned, there have been sports bets since the first sports events. There is evidence that bets were placed on the first Olympic Games in ancient Greece. The bet was placed on the winner of a race or the winner in wrestling. The more matches there were to the games, the more bets there were. The Romans made bets on almost everything that was possible. Among them also the bloody gladiator fights and chariot races. From the very beginning, fraud and manipulation were a means of winning a competition. The Roman Emperor Nero even bribed so much at the Olympic Games in his own country that he won in six different disciplines. One of them was the car race and that although he fell off the car, which normally leads to disqualification. The Olympic Games were then discontinued, but not the sports betting. In the last century there was again a time when sport, especially boxing and horse racing, fell into the hands of criminal gangs. The image of sports betting had to suffer a lot from this bad influence, also because Hollywood used the topic as the basis for many films, as a result of which perception in society drifted further into the negative.
With NFL odds the over/under can vary but usually it’s somewhere between 35 and 47 points. Let’s say in the Colts and Bengals game that the total is posted at 37.5. If Indy scores 27 and Cincy gets 13 points, the total would be at 40 and the over would win. But if the Colts rack up 35, and they shut out the Bengals, the total of 35 would be under.
Spread – also known as the line or point spread, it is generally thought of as the predicted margin of victory for one team. In reality, it's a number chosen by the oddsmaker that he feels will encourage an equal number of people to wager on the football underdog and the pigskin favorite. The negative value -13.5 indicates that team is favored by 13.5 points. The positive value +13.5 indicates that team is the underdog by 13.5 points. Betting on the favorite means the team must win by at least fourteen points to cover the spread. The underdog team can lose by thirteen points and still cover the spread.