On December 7, 1980 the San Francisco 49ers overcame a halftime deficit of 28 points in what became the greatest regular season comeback victory in NFL regular season history. By the beginning of the third quarter, notorious Vegas bookmaker Frank Rosenthal received forfeiture notices from 246 San Francisco bettors totaling more than $25,000 in premature winnings. Rosenthal was able to retain these winnings despite the final outcome of the game due to gambling regulations previously established by the NAGRA.
In June 2017, the Supreme Court of the United States announced that it would hear New Jersey's case, Murphy v. National Collegiate Athletic Association, in the fall of 2017, contradicting the position of the US Acting Solicitor General, Jeffrey Wall, who asked that the case not be heard in May 2017. In September 2017, a poll conducted by the Washington Post and the University of Massachusetts Lowell shows 55% majority of adults in the U.S. approve of legalizing betting on pro sporting events.
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.
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Edit My Bet. The ‘edit bet’ feature can be used by gamblers to ‘unsettle straight accumulators’ before matches have started or whilst they are in-play. The feature can also be used for to swap single bets for new bets, and the gambler is given a new bet selection valued at the bookie's cash out price to reflect live market/game odds for the original bet.
Totalizators. In totalizators (sometimes called flexible-rate bets) the odds are changing in real-time according to the share of total exchange each of the possible outcomes have received taking into account the return rate of the bookmaker offering the bet. For example: If the bookmakers return percentage is 90%, 90% of the amount placed on the winning result will be given back to bettors and 10% goes to the bookmaker. Naturally the more money bet on a certain result, the smaller the odds on that outcome become. This is similar to parimutuel wagering in horse racing and dog racing.
For example: New England –2.5 (–110) or Philadelphia +2.5 (–110) means you’d wager $110 for the chance to win an additional $100 if you bet on the point spread. Depending on which side is receiving the most action, a sportsbook will often move the line up or down in order to incentivize betting on the less popular side. Injuries or unforeseen changes can also impact a point spread gambling line. Point spreads are often listed with a half-point (ex: 2.5) in order to prevent the final margin from landing exactly on the point spread (ex: 10-point spread, final score of 20–10). A “push” or “tie” usually goes to the house or sportsbook, unless another arrangement has been agreed upon beforehand.
When you’re looking at over under bets, what you need to know is that that’s the combined score of the two teams for a game. In this case, it doesn’t matter who wins the game. All that matters is the final score. For example: let’s say that the New York Yankees are playing the Boston Red Sox and the total is 9.5. It doesn’t matter who wins the game but if the two teams combine for a total score of eight runs, say with a final score of Boston winning 5-3, then the game goes under. Or if the two teams combined for 10 runs – no matter who wins – then the game goes over. So when you’re looking at the odds and you see a total next to the moneyline or point spread, that tells you the over-under that is set for the game and you have to decide whether it will go over that set amount or under.
On June 11, 2018, New Jersey became the third state to legalize sports betting, after Nevada and Delaware, with Gov. Phil Murphy signing the legislation into law. Sports betting in New Jersey began when a sportsbook opened at Monmouth Park Racetrack on June 14, 2018. Following this, sportsbooks opened at the casinos in Atlantic City and at Meadowlands Racetrack.
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:
Many people will say that the odds on a spread bet are even, paying 1:1. But this is not true. The actual odds are 0.90:1. For every dollar bet, you can win 90 cents. When checking out the spread, you’ll usually see a number listed next to each spread. That number, which is your stake, is posted as -110. This number tells you how much you have to bet to win $100. If you put $110 on either team, you stand to win $100. If you bet $11.00, you can win $10.00. Every NFL point spread works this way.
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.
One important assumption is that to be credited with a win, either team only needs to win by the minimum of the rules of the game, without regard to the margin of victory. This implies that teams in a winning position will not necessarily try to extend their margin—and more importantly, each team is only playing to win rather than to beat the point spread. This assumption does not necessarily hold in all situations. For example, at the end of a season, the total points scored by a team can affect future events such as playoff seeding and positioning for the amateur draft, and teams may "run up" the score in such situations. In virtually all sports, players and other on-field contributors are forbidden from being involved in sports betting and thus have no incentive to consider the point spread during play; any attempt to manipulate the outcome of a game for gambling purposes would be considered match fixing, and the penalty is typically a lifetime banishment from the sport, such is the lack of tolerance for gambling in sport.
Sports betting is the activity of predicting sports results and placing a wager on the outcome. The frequency of sports bet upon varies by culture, with the vast majority of bets being placed on association football, American football, basketball, baseball, hockey, track cycling, auto racing, mixed martial arts, and boxing at both the amateur and professional levels. Sports betting can also extend to non-athletic events, such as reality show contests and political elections, and non-human contests such as horse racing, greyhound racing, and illegal, underground dog fighting.
In November 2014, a poll found that there had been a major shift in attitudes towards sports betting in the United States, showing that 55% of Americans now favored legal sports betting, while 66% of respondents agreed that this should be regulated by state laws, as opposed to federal legislation. The poll also suggested that 33% of respondents disagreed with the notion of legalization.
With some betting sites odds, certain games are priced differently than risking $1.10 to win $1.00 (which is called -110 odds). For example, you might see the Giants priced at -105 and +7 in a game against the Jets. Now, you only have to risk $1.05 to win $1.00. This is obviously better odds, but it's very likely that they will lose by exactly seven to give you a push. Taking -110 and +7.5 with an alternative bookmaker is actually the better bet.
When betting off the board a calculation will be made according to the odds on each event in the parlay. You will win the same amount as if you bet each event separately and parlayed all winnings as you went. An exception is if every event you pick is at -110 odds, in which case predetermined nice round odds will be used. Except for a three-leg parlay, these preset odds are not as generous as if the calculation method were used. For this reason, it is a good idea to have at least one event in the parlay that isn't -110, which will force the calculation method to be used.
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.
There are several very important terms and phrases you need to know if you have your sights set on becoming a sports bettor who has even the slightest idea of what you are about to bet on. Doc's Sports "How To" section has you covered for everything you need to know, but this may be one of the most important phrases to know when betting on sports that use a point-spread. Sure, money line, juice, totals, covering the spread and bad beat are all important words and phrase to know, but "laying the points" is something the general public loves to do. Read More >>
Over/Under means the odds-makers picked the most likely total combined score of both teams. For example in an NFL game with the Jaguars vs Dallas the over/under is 37. You can either bet on either “over” or “under”. Over, is if the two scores added up at the end, total to over 37. Under is if when you add them together, they’re less than 37. If the total is 37, it’s a tie, or “push” again.
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.
The bookmaker functions as a market maker for sports wagers, most of which have a binary outcome: a team either wins or loses. The bookmaker accepts both wagers, and maintains a spread (the vigorish) which will ensure a profit regardless of the outcome of the wager. The Federal Wire Act of 1961 was an attempt by the US government to prevent illegal bookmaking. However, this Act does not apply to other types of online gambling. The Supreme Court has not ruled on the meaning of the Federal Wire Act as it pertains to online gambling.
As you can see above, the combined score for Superbowl XLV was 56, and since this line was offered at reduced juice, a wager on the over at 44.5 of only $105 would yield a profit of $100. This line closed at a high of 46 points at some books, demonstrating how the public, who tend to show a proclivity for high scoring games, can increase an O/U line.
If you are able to interpret NFL odds and know what the various terms mean, such as the rotation number, point spread, moneyline and over/under, you’ll have a basic understanding on what you are betting. Prior to wagering make sure you see our NFL odds page, which carries all the latest odds from the top online sportsbooks. Remember that the odds makers are attempting to even the out the bets on each game. The sports bettor has to analyze each game and the odds and make their bets accordingly in order to win cash.
Proposition bets are wagers made on a very specific outcome of a match not related to the final score, usually of a statistical nature. Examples include predicting the number of goals a star player scores in an association football match, betting whether a player will run for a certain number of yards in an American football game, or wagering that a baseball player on one team will accumulate more hits than another player on the opposing team.
Moneyline (ML) – form of wagering typically used in baseball and hockey, which replaces the point spread, but also popular in basketball especially for picking underdogs. The team you choose only has to win the game, not win by a certain number of points. The negative value still indicates the favorite (-150) and the positive value indicates the underdog (+130). It's easiest to picture the number 100 sitting in the middle of these two values. For example, if you want to bet a -150 favorite, you would wager $150 in order to win $100. On the underdog, you would risk $100 and win $130 if the underdog wins. It's a simple way to have the risk-reward scenario.