Parlay (gambling) – Wikipedia

A parlay, accumulator, combo wager or multi is a single bet that links together two or more individual wagers and is dependent on all of those wagers winning collectively. The benefit of this parlay is that there are far higher payoffs than placing each individual wager separately, since the problem of hitting all of them is higher. If some of those bets in the parlay shed, the whole parlay loses. If some of the plays at the parlay ties, or”pushes”, the parlay reverts to a lower amount of teams with the odds decreasing accordingly.
Parlay bets are paid out at odds higher than the normal single game wager, but still under the”true” chances. As an example, a common 2-team NFL parlay based entirely on the distribute normally has a payout of 2.6:1 if the two selections are right. [citation needed] In reality, however, if one supposes that each single match wager is a coin flip and could be expected to pay out in 1:1, the true payout should rather be 3:1, a substantial gap.
The house creates a 20-31% profit on spread parlays, when compared with a 7% gain on individualized sports bets. [2]
An alternate means to do a parlay would be to bet on at least two favorites simply winning straight up. To be able to calculate the payout of the parlay, one has to multiply out the payout for all 3 games. For example, if 3 teams are +385 favorites, then a prosperous parlay on all 3 groups winning would pay out in a ratio of approximately 1/1. This is because (385/485)^3 is approximately 50 percent

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