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.)
A lot of betting strategy is very complex, and it definitely helps to learn some of the more advanced concepts if you want to be truly successful. However, trying to get your head around complicated strategies is NOT the right approach as a beginner. There are several simple betting systems that are relatively easy to understand, and it makes much more sense to start with these. They're not guaranteed to bring immediate success, but they can be effective if used correctly.
Many reasons contribute to why point spread betting is one of the most favored by NFL players, certainly one reason it is so attractive to the recreational player is that essentially you have a 50-50 proposition on every team no matter who they are playing meaning you have the opportunity to bet your favorite team no matter who their opponents and in theory have a 50% chance of winning your bet at reasonable odds. Take the 2008 Detroit Lions who went through the regular season without winning a game, now betting them on the NFL money line odds would have been a disaster whereas their point spread record for that season was 7 wins and 9 losses. Similarly the 2007 Dolphins went through the NFL regular season with only one win however their point spread record stood at 5 wins, 7 losses and 4 pushes against the closing line.
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 >>
The basic principle of point spreads and totals is that you have roughly a 50% chance of winning, so technically a "fair" return on these types of wagers should be equal to the amount staked. However, they are usually priced up by bookmakers at odds of -110 (1.91 in decimal odds format, 10/11 in fractional odds format), which means for every $110 staked you stand to win $100. You don't have to stake as much as $110 of course, but the point is that a successful wager will only return 90% of the amount staked (plus the initial stake of course).
The process of sports betting is nowadays better regulated and therefore a lot safer. The perception in society is also getting better and better. There are several reasons for this. On the one hand, the legalisation of online sports betting made it clear that this industry is no longer run by criminal gangs. In addition, many people recognized the irony that although they liked to play the lottery or participate in other lotteries, they still considered sports betting too risky, although they have the better chances of winning. The market was free and better controlled, the state lost its monopoly on gambling and betting providers could advertise for themselves. Now that the bookmakers were represented on television or on posters by prominent faces, the perception changed even faster. The opportunity to now also place sports bets via the Internet drew the attention of many people interested in sports. You no longer had to go to a betting office, but could place bets from the comfort of your own home, on the bus, outside with friends or in a pub.

Money Line: More common in baseball and hockey, pro football moneylines are growing in popularity. There is no spread, so your team just needs to win the game, not win by a certain number of points. The negative value means a favorite (-190) and a positive one indicates an underdog (+170). Picture the number 100 sitting in between these two values. Example: if you want to pick a -190 favorite, you must risk $190 in order to win $100. To back a +170 underdog, you put up $100 and win $170 if the dog wins. In some cases, betting moneylines is actually better value and can provide a bigger profit for less risk.