How can you win 2 bets while only risking the juice? It-s not as tough as it sounds but it will require some patience and line shopping to accomplish. Your best bet is to have several offshore sportsbooks and a local bookmaker to provide the best possibilities for a "middle opportunity".
When looking for a play to try to middle I try to find one of the following criteria:
A line where there is at least a 2 point difference. For example, you are looking at the lines and you see the following situation:
Dallas Cowboys +6.5
Minnesota Vikings -6.5
Dallas Cowboys +4.5
Minnesota Vikings -4.5
The wager that you would make is $110 to win $100 on Dallas at sportsbook A and $110 to win $100 on Minnesota at sportsbook B. If Minnesota wins the game by 5 or 6 points you will win both wagers for a profit of $200, any other outcome and you will have a net loss of $10. If you can win just 1 of these wagers out of 20 you will break even, anything better than that and you will show a profit. One of the problems with trying to middle NFL games is that usually the lines are pretty tight and most books have the lines pretty close. If you have the chance to use a local bookmaker it can certainly be to your advantage as many times they will have the line on local teams set much higher and will give you a chance to play against the home team at an inflated price.
The other situation that I look for is to find a middle opportunity when there is a line difference on a key number. If you see the following line you have a good shot at a middle even if there is only a 1 point difference.
Dallas Cowboys +2.5
Minnesota Vikings -2.5
Dallas Cowboys +3.5
Minnesota Vikings -3.5
In this situation you would do the same as in the previous example, the wager that you would make is $110 to win $100 on Dallas at sportsbook A and $110 to win $100 on Minnesota at sportsbook B. If Minnesota wins the game by 3 points you will win both wagers for a profit of $200, any other outcome and you will have a net loss of $10. The key numbers to look for in the NFL are lines that span 3,4,7 and 10 as these are the most common final score differences.
One other important consideration is that if you are playing at sportsbook like 5Dimes.eu where they offer reduced juice then you will actually have a better chance of coming out ahead since you would only be losing $5 on each losing middle opportunity based on their standard reduced juice lines
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