# 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.

^{While home field advantage may be a sports term, it can also be linked to your house, your route to work, or even a trip to a familiar grocery store. Think about this for a second. If you've ever hosted a party at your house, you know where everything is and you would have free reign to go into any cupboard, drawer or room you that you please. That would be an example of home-house advantage. If you've ever gone to an unfamiliar grocery store (maybe you weren't around town but you needed to make a pit stop), it is going to take you a while to find exactly what it is you are looking for. Read More >> }

For each NFL game the oddsmakers set a number of points in which the favored team is favored by. Bettors can then either choose for the favored team to win by more than the number of points set, or bet on the underdogs to lose by less than the number of points they are underdogs by or win the game straight up. For example, the spread could be set on the favored team at 6.5 points. This would mean in order for a bet on the favored team on the spread to win they would need to win by more than 6.5 points (7 or more) in order to win the bet. It also means that a bet on the underdog team would win if the underdogs lost by less than 6.5 points (6 or less) or won the game outright.

If you're seeing 15 or 25 instead of 15/1 or 25/1, you're seeing a decimal form of odds, as opposed to fractional. Multiplying your stake by decimal odds gives your total return, not your profit(which is total return -stake). To get to fractional from decimal, add 1. So 3/1 fractional = 4 decimal (just 4). 4/6 frac = (4/6+1) dec = 10/6 = 5/3, or 1.666, which is rounded to 1.67 by bookies. To go from decimal to fractional, subtract 1(which makes sense from profit = total return - stake) So 15 dec = 14/1 frac. 2.33... dec = 1.33/1, or 133/100.

**There are also half bets, which are a wager placed on the odds posted for the first half or second half of a football game only. All halftime wagers are calculated the same as a straight wager. Another type of bet is a parlay which is a selection of 2 or more teams. All teams wagered on in a parlay must win. If there is a tie on any bet you would be paid out on the next payoff. For example, if you had a 5 team parlay and two teams tied, you would then be paid on a three team parlay if all the other teams won. Another type of football bet is called a teaser, which is a selection of two or more teams in one wager in which the point spread is adjusted in your favor. The number of football teams selected and the number of points selected determines the odds for payout.**

`First, however, a word of caution: Sports betting can be a fun and profitable venture. However, like most good things in life there are pitfalls to be aware of. You should be able to enjoy many positive experiences as long as you bet in moderation and under control. We know you have heard this before but it definitely bears repeating: don’t bet money you can’t afford to lose, either emotionally or financially. If you or someone you know shows signs of compulsive gambling, one place to find help is Gamblers Anonymous.`

*Teasers are similar to parlays except the point spread on each game moves a certain number of points in the player's favor. In football the player gets 6 to 7 points, and in basketball, 4 to 5 points. The player pays for this in the form of much lower winnings. For example, if the Vikings were part of a 6-point teaser, then they would only need to win by more than 4 points to cover. If the Rams were part of a teaser, they could win, or lose by less than 16, and cover.*

_{However, there are some good values with teaser bets if you know how and where to find them. For instance, the six-point teaser is an especially effective bet in the NFL, where most games are tightly contested and six points can make a world of difference. For instance, in our previous example, the Bears would go from laying six points to simply needing to win if you put them on a teaser bet. Conversely, Detroit backers could get 12 points instead of the starting six. (Source: Doc's Sports Service) }

*Who doesn’t love a good old-fashioned NFL spread? Not only does the point spread remain the king when it comes to wagering on pro football, it is a favorite among pro sports bettors and beginners alike. Also known as the line or spread and as betting “sides,” a common misconception is that sportsbooks set the spread as a predicted margin of victory. It’s actually the number oddsmakers predict would be a good balance between people who want to bet the underdog and those who want to bet the favorite.*

Apply the money line. It's easiest to think of money lines in relation to $100. A minus sign means you have to bet that much money in order to win $100; a plus sign means that a $100 bet will return that much money. If you bet on Chicago at -110, you'll have to wager $110 in order to get back $100 (plus your original $110). If you bet on Detroit at +145, then a $100 bet will give you $145 (plus your original $100).

_{As always, beware of sites offering paid or free NFL betting picks in connection with a varying unit betting system. If you are using their pro football betting picks to gamble on NFL football games, you might consider that some of these sites are providing money tips which are likely to drain your NFL sportsbook account. Earning gambling profits long term takes discipline to know there is always another game to bet on. Most free sports pick sites don't understand that it requires more than winning football predictions to earn a living betting on sports. So for anyone living in an area where NFL gambling is legal, keep in mind that relying on "bet the house" free NFL picks could seriously reduce your NFL betting success. }