Spread betting has moved outside the ambit of sport and financial markets (that is, those dealing solely with share, bonds and derivatives), to cover a wide range of markets, such as house prices.[5] By paying attention to the external factors, such as weather and time of day, those who are betting using a point spread can be better prepared when it comes to obtaining a favorable outcome. Additionally, by avoiding the favourite-longshot bias, where the expected returns on bets placed at shorter odds exceed that of bets placed at the longer odds, and not betting with one’s favorite team, but rather with the team that has been shown to be better when playing in a specific weather condition and time of day, the possibility of arriving at a positive outcome is increased.

When betting on the favorite, simply divide the negative moneyline by 100 to get a decimal. If you were planning to bet on the Celtics in the above example, this would give you 2.40 (ignore the negative). Now all you have to do is divide your stake by that number in order to see what your potential payouts would be. Let's say you wanted to stake $650. When you divide that number by 2.40, you'd see that your potential payout is $270.83.
The betting public as a whole is not very smart. There is a reason it is such a lucrative business to be in for the sportsbooks. The public loves to bet popular teams, great story lines, and trends that don't have a lot of merits. If you think that the public is going to bet a lot and shift the line more in your favor, just wait. In these situations, the worst that might happen is the line doesn't move, and you then take the bet right before the game at the original line that you still thought had value. Yes, there is a possibility of the point spread moving the other direction. If this happens, you just don't make a bet on this game and wait for the next one.
Proline will set a point spread for each game of either -0.5 / +.05, -1.0 / +1.0, or -1.5 / +1.5. If you choose -0.5 the team must win by 1 goal or more to win your wager. If you choose +0.5 your team must win or tie the game. Note that OLG Proline includes the shoot-out for point spreads so there are never any ties for the -0.5 / +0.5 spreads.  If you choose the -1.0 spread your team must win by 2 or more goals to win the bet. If they win by 1 goal exactly it is a push. If you choose the +1.0 spread your team must win the game by 1 or more goals. If they lose by 1 goal it is a push. If you choose the -1.5 spread your team must win by 2 or more goals. If you choose the +1.5 spread your team must win the game, tie, or lose by 1 goal to win the bet.
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.

Remember that every spread still has a moneyline attached to it. While that might be a bit confusing, all that refers to is the cost of betting the spread; not how the outcome will be decided. For example, if someone says to you that “the Patriots are laying three points but I have low juice, so my moneyline is -104”, what they are referring to is the price of betting the spread. That merely means that they are betting the spread but the moneyline attached to betting that spread is -104.

Understanding NFL betting lines is just the first step towards making profits with football wagering. Once you've got the basics down, it's important to continue learning sports betting strategy to improve your long-term chances of winning. If you're able to win more than 52.4% of the time, you'll be well on your way towards being a profitable NFL bettor.

"Point Spread" or "Handicap" odds are when it is possible to bet on whether the chosen outcome will be victorious once the listed handicap is added or subtracted to the game to which the bet refers to. In the circumstances where the result after the adjustment of the handicap line is exactly equal to the betting line, then all bets on this offer will be declared void. Example: a bet on -3.0 points will be declared void if the team chosen wins the match by exactly 3 goals difference. Any reference in this section to the term "margin" is intended to be understood as the outcome emerging from the subtraction of the points scored by the 2 opponents.
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.
If you are betting on a sport where there are multiple entrants, like in a race or tournament, you may find that every entrant is paying out at favorite odds. This is because it’s much more challenging to pick a winner from a large field, and the sportsbook will be rewarding you for that. Just know that when you see the plus sign, you will be getting paid better than even money for a correct pick.
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.
Without a points handicap, it would not make sense to pay both sides of a wager the same amount when it's clear that not all teams are on equal footing. In fact, it is entirely possible for a team to lose the game in real-life but still win a bet if they only lose by less than a set number of points. Vice versa, a team can win a game, but lose the wager if they do not win by more points than what was predicted.
Another thing to consider is popular winning margins, which are particularly applicable to football. Consider that many tight games may finish with either a three point or a seven point margin. If the point spread is around either of these marks, make every attempt to be the right side. For example, if you were to back a team that is either 2.5 or 3 point favorites, you’d want to back them at the 2.5 mark, as if they were to win by 3 you’d win as opposed to a push.
Winning at sports betting is challenging. If it were easy, everyone would quit their jobs and do it, and sportsbooks would all be out of business. What makes it so challenging is that the lines are usually set pretty spot on which means it's a bit more challenging to pick the correct side of the bet. That being said, it's definitely not impossible to make money betting basketball point spreads. You'll have to develop a winning strategy and continually tweak it until it's perfect. Here are a few tips and strategies that will help point you in the right direction.
A point spread in sports is a figure set by oddsmakers to provide an advantage or disadvantage based on the margin of victory or defeat for a given team. The “favorite” team (labeled with a “-” sign) would be at the disadvantage as they would need to win the game by a set number of points while the “underdog” team (labeled with a “+” sign) would be given an advantage to not lose the game by a set number of points. The reason oddsmakers do this is to provide betting interest for both sides due to one team typically being better than the other.