Point spreads are more common in the United States, but you can see them throughout the world. A point spread, in theory, is the sportsbooks attempt to create a "level playing field." Let's look at an exaggerated example that will make this clearer. Let's say the New England Patriots are playing a game against a junior varsity high school football team. They're also using deflated footballs, and the Patriots get to see the high school team's playbook before the game. If a sportsbook were to allow you to bet on which team would win, everyone would bet on the Patriots as they would probably annihilate this other team.
The number that comes after the plus or minus sign is how significant of a favorite or underdog the teams are, regarding points. In the first game, the Bengals are a 1.5 point underdog. This means that the sportsbook thinks the Bengals are going to lose the game by 1.5 points. This means, by default, that the Chiefs are a 1.5 point favorite. This means the sportsbook thinks the Chiefs are going to win the game by 1.5 points.
For example, if you’re betting on teams A, B, and C to win outright, you’ll have two round robin options available. Your By 2’s option includes all possible 2-team parlays for these three wagers (A+B, B+C, and A+C). And your By 3’s option includes all possible 3-team parlays on these 3 wagers (A+B+C). If you wager $30 on the By 2’s option, that money will be split evenly among the 2-team parlays ($10 on each of the 3 wagers).
Anybody who wagers on the 49ers would need them to win by 7 points or more for a winning bet. Those betting on the Rams (+6.5) would need them to lose by 6 points or less (or win) for a winning wager. It's also worth mentioning that a half point is used in many point spreads (such as the -6.5/+6.5) to prevent pushes because no team can score half a point.

Apply the spread. In point-spread betting, the actual final score of the game is only the starting point. Say Chicago beats Detroit 24-17. Because Chicago was the favorite, you subtract the point spread from its final score. That's the purpose of the minus sign in the spread. The spread was 6, so you take 6 points away from Chicago's point total, giving you an "adjusted" score of Chicago 18, Detroit 17. If you'd bet on Chicago, you'd have won the bet. Now, say Chicago won the game 20-17. Subtracting the 6 points from Chicago's total gives you a final score of Detroit 17, Chicago 14. If you'd bet on Chicago, you'd have lost.

Notice that point spreads adjust the score for the favorite team. This is easiest to see with an example: If the New York Knicks are playing the Boston Celtics, and Boston is favored to win by a 4-point spread, then a bet on Boston only pays out if Boston wins by more than 4 points. A bet on New York pays out if New York wins or if they lose by less than 4 points.
If you want to bet on football, then you have plenty of options. There are not only lots of games you can bet on, there are also lots of different types of wagers you can place. Point spreads and totals are the most popular types, by quite a distance, and many football bettors stick solely to those. This isn't really the ideal approach, as some of the other wagers can be very useful in the right circumstances.
Let’s say that people think the Mavericks are going to crush the Magic, and the money starts to pour in on the Mavs. Obviously, the sportsbook likes seeing a lot of bets come in, but they need them to come in evenly. So, to slow down the money coming in on the Mavericks and entice people to bet on the Magic, they will shift both lines. The new line might look something like this:
Only bet games where you have a clear prediction on a team covering the spread. Look for lines that you think are incorrect and put your money there. The idea here is to be making intelligent picks that you actually believe will win. If you're betting every game, you're just gambling and no longer letting your skill and knowledge base shine through.
If a fight is scheduled for more than four rounds and, after four rounds, an accidental foul occurs which causes an injury (further to which the referee stops the fight), the fight will be deemed to have resulted in a technical decision in favor of the boxer who is ahead on the scorecards at the time the fight is stopped (and all markets on the fight will stand).
Let’s say that a ton of bets pour in on the Mavericks. In order to encourage more bets on the Celtics and even things out, they might move the line to 5 ½. This means that a bet on the Mavericks would now win only if they won by more than 5 ½ points instead of 4 ½. This would discourage more people from betting on the Mavericks, as they would have to perform much better to get you the victory.
Ideally, the lines I release will balance the action equally, so that the winners get paid out from the pockets of the losers and we take the vigorish. That’s an ideal that rarely happens – especially in sports without a pointspread, like NASCAR and golf. If Team A is getting too much action, I’ll move the line toward Team B to try to achieve that balance. My personal preference is to tweak the vig from –110 to –105 or +100 before taking the bigger step of moving the spread a half-point or more.
Point spreads focus on a margin of victory between the two teams and again, what you’re looking for is the positive and negative signs. If there is a minus sign next to a team’s spread, that suggest that they are favored and have to win by or cover that amount. If there is a positive sign, that tells you that they are the underdog and they are getting points. For example: let’s say that the New England Patriots are playing the Buffalo Bills and the Patriots are -5.5 and the Bills are therefore +5.5. If you bet the Patriots, they have to win by six points or more to cover. If you bet the Bills, they can lose by five points or less, or they can win the game outright and you would still win your bet.
You have three choices for the three betting options: Home, Away, or Draw (tie). The result of the game is decided after regulation play (90 minutes plus injury time). Overtime, the Golden Goal rule, and penalty kicks are not taken into consideration for soccer bets unless otherwise stipulated. You can usually bet on a winner or advancement (including OT & shootouts) but with different odds would be given.
The point spread bet is a bet designed to give each team an equal chance of winning a particular game. Obviously, not all teams are equal, so the sports-books have devised a mechanism to even up the teams, and that is by taking points/runs/goals off the team who is favored. The more a team is favored, the more the gambling site will take off them, enough to theoretically make the game a 50/50 chance.
Moneyline bets will move the line based on the amount of money coming in on each side of the bet. It has nothing to do with who the sportsbook really thinks is going to win the game and everything to do with that delicate dance of getting the right money on both sides. For example, let’s say that the line for the Magic and Mavericks game is the following:
You may be wondering how we determined which of the two teams was the favorite and which was the underdog. You may also be wondering how much you get paid out for a bet on either side of this game. If you look at the odds above (this is a screenshot from an actual online sportsbook), you’ll see that all of that information is given to you. Before the spread number of 4 ½, you’ll see a plus or minus sign. The plus sign indicates the underdog and the minus sign indicates the favorite.
Absolutely. When the lines go up for the NFL, or for the first game of the NCAA men’s basketball tournament, there are several days in between the open and the game itself where movement can take place. You’ll find that the betting public tends to pile in on their favorite teams once they get home from work on Friday. You can anticipate these line movements and time your bet accordingly to take advantage.

The house vigorish - and your chances of winning - get worse with the more teams you add. So while some sportsbooks will let you place a 15-teamer with astronomical odds, you probably have a better chance of being struck by lighting - twice - before winning one. You are much better off sticking to two-team parlays exclusively, if you insist on taking poor odds and placing parlay wagers. 

It’s common knowledge among bettors that the online gambling industry pays close attention to Las Vegas Sports Consultants, a private company that handles the odds for casinos and newspapers. But the totals I set have to reflect our customers’ preferences for betting the over or under on certain teams in certain situations. Also, because LVSC lines are published early, I have to keep on top of injuries and potential changes in coaching strategy leading up to the game in question before I release any totals. This is doubly important in basketball, where pace determines how many shots will be taken in 48 minutes.

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.

In most football games there is a favorite and an underdog. Very occasionally there are games where the two team are completely evenly matched, but for the most part one team is favored over the other to win. With point spreads, the idea is to create an even money proposition when betting on the game. So the favorite has to win by at least a certain number of points for a wager on them to be successful, and the underdog has to lose by no more than a certain number of points for a wager on them to be successful. The bigger the gap in quality between the two teams, the bigger the point spread.

Placing a point spread bet means gambling on how much a team will win or lose by. In our above example, the Cowboys are the favorite. How do we know that? The minus symbol in front of the point spread indicates that the bookmaker thinks the final score will have Dallas winning by 7.5 points or more. The underdog, in our example that’s the New York Giants, will always be indicated with a plus sign. If you wager on the Cowboys on the point spread, America’s Team will have to win by at least 8 points for your wager to pay off. Should the Cowboys win by less than 8 points, your bet is lost.

The point spread - also called "the line" or "the spread" - is used as a margin to handicap the favorite team. For betting purposes, the oddsmaker predicts that the favored team will win by a certain number of points. This number of points is the point spread. The favorite is always indicated by a minus sign (e.g. -5.5) and the underdog by a plus sign (e.g.+5.5). If you bet on the favorite, you win your bet if the favorite wins AND their margin of victory is greater than the point spread. If you bet on the underdog, you win if the underdog wins, ties, or if the favored team wins but fails to exceed the point spread. It is standard for point spread bets in most sports that you wager $110 to win $100.

Let's say you decide to bet $100 on Liverpool, and they lose the game by two goals. You would push on the first half of your bet and win the second half of your bet. You would receive your $50 back for the push and $43.48 in profit on your second bet. Basically, the sportsbook would hand you back $143.48 total, which would include $50 for the push, $50 for your original bet, and $43.48 for the push.
Feel free to play around with exactly how much to bet per wager. We just wanted to show you that making a guaranteed profit is doable. Since it's possible to claim bonuses at a number of different sites as a new customer, and since many sites offer a reload bonus, this strategy is repeatable. The most important thing to remember is this; only bet with reputable sites, like any of the ones we recommend.
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.

If bettors were quick to jump on the Atlanta line at +4.5 when it first came out, they would have a distinct advantage over those who waited closer to kick off and were stuck with +2.5. The opposite holds true for Carolina. Bettors that were quick to pull the trigger are now laying two more points than they would if they were patient and saw the line movement before making their move.
The -110 on either side is like paying a tax or commission to the sportsbook. Bettors would pay 10 percent (aka juice) to the sportsbook, which is essentially a fee for brokering the wager. So, the -110 indicates that a bettor must risk $110 to win $100. Some sportsbooks will even reduce the juice for you which means you can earn the same $100 payout but risk less money to do it.