Identify the type of line you are looking at. All online sports books offer you the chance to have your lines in an "American" or "Money line" version. If I were you, I would use this as my standard. An "American" line uses either a + or - before a number to indicate odds. So a -120 and a +120 are two very different odds on a team… I will explain the differences shortly. Two other less common variations exist: decimal odds and fractional odds.
Another form of futures betting involves the over/under on the number of games a particular team will win in the regular season. This type of wager is typically found on pro football and major league baseball, and sometimes on pro basketball. For example, the over/under on the Yankees may be 93 wins. If the Yankees go on to win 94 or more games, the "over" is a winner. If they win 92 or fewer games, the "under" is a winner. If they win exactly 93, the bet is a push and tickets are refunded.
If you like favorites, you're going to be betting a lot to win a little. The money line will always be listed to the right of the point spread on the odds board in a sports book. In the above example, the money line would probably be Chicago -250 and Detroit +200. To bet Chicago simply to win, you must wager $250 to win $100, while a $100 bet on Detroit would pay $200 if the Lions come through.
The Packers were the designated home team for Super Bowl I, so they’re listed at the bottom. They were also the favorites in this game, representing the mighty NFL; the –14 you see above indicates that Green Bay was a 14-point favorite, meaning they had to win by more than 14 points to cover the spread. The Chiefs, representing the upstart AFL, were 14-point underdogs. If they had won the Super Bowl, or lost by fewer than 14 points, they would have covered instead. A Packers win of exactly 14 points would have resulted in an push, with all monies returned. In the end, Green Bay won the Super Bowl 35-10 and covered the spread.
Spread betting are wagers that are made against the spread. The spread, or line, is a number assigned by the bookmakers which handicaps one team and favors another when two teams play each other and one is perceived as being more likely to win. The favorite "takes" points from the final score and the underdog "gives" points. This number can also be in increments of half-a-point (.5) even though very few sports have .5 point scoring (i.e., The Ryder Cup)
In general, the betting public tends to gravitate towards favorites when betting the games regardless of the actual pointspread. This is especially true with high-profile teams such as Dallas and Green Bay in the NFL and Golden State and Cleveland in the NBA. The sportsbooks are well aware of this phenomenon and often times they will adjust the betting spreads accordingly. This, in turn, actually adds some value to the underdog when you consider that a pointspread is nothing more than a handicapping tool that is designed to even out the match.
If the Cowboys are 6-point favorites, their odds are -6. If the Giants are 6-point underdogs, their odds are +6. From the oddsmakers' perspective, the Giants are starting the game with a 6-0 lead, while from the Dallas side, the Cowboys are starting with a 0-6 deficit. If you bet on the Cowboys and they win 34-30, they failed to cover the spread by two points. If you bet on the Giants, they beat the spread by two points.
Financial spread betting is a way to speculate on financial markets in the same way as trading a number of derivatives. In particular, the financial derivative Contract for difference (CFD) mirrors the spread bet in many ways. In fact, a number of financial derivative trading companies offer both financial spread bets and CFDs in parallel using the same trading platform.
Above, you can see several numbers to the right of both teams. These all represent the different lines that are available on the San Francisco vs. Los Angeles game. The first set of numbers for both teams is the point spread, the second set is the moneyline, and the third set is the over/under (a.k.a. totals). We'll explain each of these lines more in-depth below.
Donald Hoover, FDU professor in International School of Hospitality and Tourism Management and former casino executive commented on the results, "Betting on sports is not an uncommon practice for many New Jerseyans, but for the most part, the state doesn't supervise it, doesn't tax it and doesn't take any revenue from it." In 2010 a national poll showed that voters opposed sports betting in all states by a margin of 53-39. Woolley commented on the results, "If some states allow sports betting and profit by it, other states will want to follow." Yet by December 2011, after New Jersey passed its sports betting referendum, the national measure shifted to 42-42. In January 2012, New Jersey Governor Chris Christie signed legislation allowing sports betting in the state after it was approved in a nonbinding voter referendum in 2011. He announced on May 24, 2012 that he planned to go ahead and set up a system of wagering at the state's racetracks and casinos that fall, before the National Football League season ended.