This is a very common occurrence throughout the sports betting industry. Sportsbooks have the right to shift the spread or odds for any given match prior to it starting. Many factors play a huge role in this decision, and they include injuries, weather, the volume of bets on one side, and anything in between. Depending on the time you place your wager, the bettor may also have an advantage or disadvantage based on which way the spread has shifted.

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In North American sports betting many of these wagers would be classified as over-under (or, more commonly today, total) bets rather than spread bets. However, these are for one side or another of a total only, and do not increase the amount won or lost as the actual moves away from the bookmaker's prediction. Instead, over-under or total bets are handled much like point-spread bets on a team, with the usual 10/11 (4.55%) commission applied. Many Nevada sports books allow these bets in parlays, just like team point spread bets. This makes it possible to bet, for instance, team A and the over, and be paid if both team A "covers" the point spread and the total score is higher than the book's prediction. (Such parlays usually pay off at odds of 13:5 with no commission charge, just as a standard two-team parlay would.)

To calculate your potential payout, you multiply the size of your bet by the decimal. That’s it. If you want to be $10 on the Heat, you would multiply $10 by 1.65 and get $16.50. Now, you may be freaking out right now saying that in our previous example we got $6.50 and now we’re getting $16.50. The difference here is that the decimal calculation will tell you your TOTAL payout which will include the return of your original wager. You will be receiving $6.50 in profit and the $10 from your original bet.
We go in depth on this in the advanced guide on understanding value that we referenced earlier, but we will give you a brief intro on it here. If you’re able to calculate the percentage chance that you have to win in order to break even, and you can figure out the percentage chance that you think you’re going to win the bet, you can figure out very quickly if there is value.
A lot of people who are new to online betting aren’t aware of prop bets, because a lot of brick-and-mortar sportsbooks just don’t have the resources to allow them. These bets are a great way for you to make some extra money off of predictions that might not have a direct outcome on the winner of the game. For example, let’s say you think that the Warriors are going to shoot lights out from the field, but you think for some reason they aren’t going to get a lot of looks and are going to lose the game. Your only option without prop bets would be to bet on the team they are playing against, but that might not be a great value bet.
Because the Blue Jays are favored, the sportsbook needs you to risk more to bet on them. After all, they should win this game. So wagering on baseball favorites with moneylines calls for you to risk a certain number ($185 based on -185) in order to win $100. On the other side, the sportsbook is also willing to reward you for taking the underdog, so they give you an incentive to bet on the Orioles. In this case, you would risk $100 in order to win $165 (+165) on Baltimore.
Shopping betting lines is one of the most important things you can do when betting point spreads in basketball. While the majority of sportsbooks will have the same line, it's fairly common that you can find lines that are a half or full point different. This can have a huge impact on your bottom line. If you don't think a half point or one full point makes that big of a difference, just ask anyone who has bet sports for a while. They will inform you that getting an extra half point is like winning the sports betting lottery.
Oddsmakers do more than pick the winners and losers of each game. They weigh myriad factors to determine which team is favored by how many points. They set an early point spread on each game, then adjust it up or down based on betting patterns. If the Dallas Cowboys are 6-point favorites over the New York Giants, they must win by seven or more points to pay off winning bets. If you wagered on the Giants, you win your bet if New York either beats Dallas outright or loses by five points or fewer.
There are four elements to the moneyline bet that you can see here. The first column is just an identifier of which bet is which for the sportsbook. When you place your bets, you can tell the sportsbook you want to bet on the Eagles to win or that you want to take bet 055. This number has nothing to do with the actual game and is just a code for the sportsbook to keep their bets organized.
All connotations related to the bet must be fully and unquestionably complied with for the bet to be deemed as winning, regardless of any possible conflict with the sport-specific rules, or with any potential interpretation based on previous or current presentation of offers related to events in that particular sport and the way these are normally presented in DraftKings Sportsbook. Bets will be settled as void should it still be impossible to determine a winning outcome.
As an example, let’s consider a matchup between the Indianapolis Colts and the Cincinnati Bengals. In our scenario, the Bengals are the home team, which means they will be listed last and the Colts, as the visitors, will be on the odds slip first. If Indy’s rotation number is 101, then Cincy’s rotation mark would be 102. When you place a bet live at a Vegas sportsbook or over the phone, you would say the number of the team on which you want to wager and not the name.
"Grand Salami" is where you bet on the total number of listed occurrences, such as total goals or run, Happening during a collection of events. All relative events must be completed for bets to stand except for the outcomes of which have been decided prior to the abandonment and could not possibly be changed regardless of future events, which will be settled according to the decided outcome.

Now, just to point out, the fractional odds and the moneyline/American odds give us our profit. The decimal odds give us our full payout which includes the return of our original bet. You are still getting your original bet back with the moneyline/American and decimal odds, it’s just not reflected in that calculation. If you want to see your full payout (basically how much money they should hand you), simply add your original bet amount to your profit number.
Of course, it wouldn’t be. Everyone would bet on Mike Tyson, and the sportsbook would lose all of their money and close the next day. So what the sportsbooks do is they assess who is the favorite and who is the underdog and assign a value to how much in each direction they think they are. Let’s look at what the odds might look like for our fictitious fight and break down what everything means.
Identify the favorite. Lines with a - before the number (i.e. -200) indicate the favorite. A -200 should be read as: "For every $200 wagered, I win $100." When there is a negative sign, the line should always be read with relation to 100. That does not mean you have to bet that much, it's just easiest to understand! When a + sign is present, just reverse the reading, always keeping reference to 100:
Earlier, we explained how the implied probability of -240 is 70.59% and how the implied probability of +210 is 32.36%. Notice these two probabilities total 102.95%. The extra 2.95% is the bookmaker's advantage. It's called vig, and it's basically a commission that they charge customers for placing wagers. By removing the vig, you can see what the fair odds on the game would be.
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.
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