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What are the True Odds of hitting a 20 team parlay?

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All-Star
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Joined: Aug, 2008
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Posted: #1
I want to know what kind of edge I'm giving away on this million dollar parlay card.
 
MVP
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Joined: Aug, 2007
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Posted: #2
slim to none- and slim just left town,,safe yourself the time and headache vegasmaxx and just toss the cash in the can
 
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Joined: May, 2010
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Posted: #3
Assuming a 50% chance of each leg of the parlay

0.5^20 =



 
Prospect
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Joined: Oct, 2006
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Posted: #4

true odds of hitting a 20 teamer ?

Try something easier like hooking up with Pamela Anderson.

Here's a parlay story for you. 3 different times I have missed $100 8-teamers by one game. Once the one game was the GS Warriors getting +5 at LAC. GS led by 6 going into the 4th. They lost by 6. Goodbye 12K.

To hit a 20 means you're the luckiest MF that ever lived.

 
Prospect
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Joined: Apr, 2010
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Posted: #5

The casinos have a $200,000 ceiling on how much you can win on a parlay card.  I know an 8 teamer parlay with all eight games at odds of  -110 pay 175 to 1.  The only time of year it makes sense to play a parlay of bigger than two or three teams is in September during college football and load up on the college football mismatches as the big powers pound the cupcakes.  I won't even play a two teamer parlay in the NFL anymore, too much parity. 

 
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Posted: #6
mirage-stations casinos have a million dollar parlay card where 20 for 20 pays a cool million.   I went to donate 5 dollars to their cause but couldn't stomach it when I read "ties lose"   I hope they stay bankrupt.
 
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Posted: #7
All parlays are sucker bets by the virtue of "compounded vig"

Same theory holds true at the racetrack when betting exotics.  In that case you are betting against yourself if you box anything or "wheels".  At the track you start at 17% vig on a straight wager, and it gets much worse once you start boxing.
 
 
Veteran
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Joined: Jan, 2006
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Posted: #8
Assuming a 50-50 chance with each game, the odds are 1 out of 1,048,576.

As mentioned above, that's (1/2)^20

Thus, if this parlay card costs $5.00 to pay, the casino "should" pay you $5,242,880.00 for your efforts, if they had no house edge.
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