The first part of each line tells you who you are betting on. The first line is a bet on Mike Tyson and the second line is a bet on Old Man River. Next, you’ll see a plus or a minus sign. The plus sign signifies the fighter who is an underdog, and the minus sign signifies the fighter who is the favorite. As you can see, Mike Tyson is the favorite and Old Man River is the underdog.
Baseball, soccer, and ice hockey are mostly moneyline betting, since these sports do not have point spreads moneylines are the default way of wagering. Football and basketball do have moneylines in addition to point spreads. In recent years, football moneylines have become extremely popular among sports bettors. Moneyline betting is based on the amount bet per $100. Let’s look at look an example of a baseball moneyline:
The point spread is essentially a handicap towards the underdog. The wager becomes "Will the favorite win by more than the point spread?" The point spread can be moved to any level to create an equal number of participants on each side of the wager. This allows a bookmaker to act as a market maker by accepting wagers on both sides of the spread. The bookmaker charges a commission, or vigorish, and acts as the counterparty for each participant. As long as the total amount wagered on each side is roughly equal, the bookmaker is unconcerned with the actual outcome; profits instead come from the commissions.
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 number-one key to success here (as it is with any type of sports bet) is understanding what value is and knowing when and how to take advantage of it. Value, in a nutshell, is finding sports bets that are paying you at a better rate than you think they should. If you place enough of these bets to overcome variance, you’re going to be a long-term winner.
Single day matchups are wagers on the complete 18-holes for that day. Holes played as part of a completion from the previous day's round, and playoff holes are not included in Single Day matchups. The full 18 holes will be considered in determining the outcome of the bet even if they are played on consecutive days. If both members of the matchup do not complete the full 18 holes, all bets are "No Action". If both players end the 18 holes in a tie, the bet is considered a "No Action" wager.
The first number (56.5 in our sample line) is the book’s predicted total score, while the second number (110 in our Giants/Cowboys rivalry game) is how much a punter has to bet in order to win $100. If you were to bet the over-under on this game, you’ll have to decide whether you think the combined score of both teams will be higher or lower than the number put up by the book. Let’s say you bet the over, assuming the game will be a shootout between two talented offenses, you’re hoping that the final score will be anything that totals 57 or more. It could be Dallas 54, New York 3, or any other point combination that adds up to 57 or more and your bet will win. Betting the under means that the two teams cannot score more than 56 points combined, or else you lose your bet.
The odds given on the spread are usually -110 unless otherwise noted. It is not uncommon to see one side of the spread being -105, with the other side being -115. If you don’t see any odds listed for each side of NFL spreads you are supposed to assume the odds are -110 on each. Not sure how to read NFL betting odds? Check out our Sports Betting Odds guide.

Linemakers who work for the sportsbooks must put out lines that will entice the "favorite" bettors to lay the points and take the favorite or entice the underdog bettors to take the points with the underdog. Because each sportsbook is operated under their own rules, guidelines and stipulations, they are free to put out whatever line they feel is competitive and charge whatever vig they want to based on how much action that specific line is taking.


But what if the basement-dweller team was spotted 24 points? That's the concept behind the point spread. When two teams meet on the football field or a basketball court, one team is typically better than the other. If all bettors had to do was to pick the winning team, everybody would simply wager on the best team and collect their money. Gambling institutions, sportsbooks, and bookies would soon go broke. 
Sports betting has been around since 1000 B.C in China, where betting on animal fights was commonplace. In ancient Rome, one could wager on the Gladiatorial games. The idea of betting on sports is as old as organized sport itself. But up until the 1940s, bettors were fairly limited in what kind of bets they could make. The standard system of odds would allow bets on, for example, the 3-1 odds that the Steelers would beat the Browns.
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