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  1. #1

    Default how do you calculate parlay odds?

    i know there is a parlay calculator, but i like to know how do the books calculate it.

    2 team parlay with -110 -110 is +260...how do they come up with that odd?

    what is the formula to use when you want to calculate a 2-team parlay with -105 -110?

  2. #2

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    ok, i know how to calculate true parlay odds. for 2 teamer -110 each is +264. how does the book come up with +260 odds?

  3. #3
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    Quote Originally Posted by picoman View Post
    what is the formula to use when you want to calculate a 2-team parlay with -105 -110?
    You take the product of the decimal odds.

    Hence, true parlay odds on two bets at would be (1+100/110)*(1+10/110) ≈ .

    True parlay odds on one bet at and another at would be (1+100/105)*(1+100/110) ≈ .

    This means that when parlaying 2 teams at -110 for +260 you're actually getting each team at odds of about .

    Similarly, when parlaying 3 teams at -110 for +600 you're actually getting each team at odds of about .

    Quote Originally Posted by picoman View Post
    ok, i know how to calculate true parlay odds. for 2 teamer -110 each is +264. how does the book come up with +260 odds?
    Books will frequently offer 2- and 3- team parlays ot odds of +260 (13:5) and +600 (6:1), respectively. This is a throwback to the old days when (apparently) calculators were hard to come by and weighted several tons each (most of that weight was of course due to the wise-crackin' Pterodactyl that provided the calculator its juice). It was easier for a book maker (or is his customers) to calculate payout amounts at 13:5 or 6:1 than at 2.6446:1 or 5.9579:1.

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  4. #4

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    Quote Originally Posted by Ganchrow View Post
    Books will frequently offer 2- and 3- team parlays ot odds of +260 (13:5) and +600 (6:1), respectively. This is a throwback to the old days when (apparently) calculators were hard to come by and weighted several tons each (most of that weight was of course due to the wise-crackin' Pterodactyl that provided the calculator its juice). It was easier for a book maker (or is his customers) to calculate payout amounts at 13:5 or 6:1 than at 2.6446:1 or 5.9579:1.
    noticed something odd on pinnacle. when i try to parlay 2 teamer with -110 odds on ncaa games, i am getting +260, but if i tried to parlay two games with slight off odds (-111 or -118), i am getting true parlay odds.

    weird

  5. #5

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    Quote Originally Posted by picoman View Post
    noticed something odd on pinnacle. when i try to parlay 2 teamer with -110 odds on ncaa games, i am getting +260, but if i tried to parlay two games with slight off odds (-111 or -118), i am getting true parlay odds.

    weird

    No, not weird, that is normal. When you are parlaying teams that are all at -110, refer to the book's chart. When parlaying teams with different odds, books give true parlay odds.

  6. #6

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    Quote Originally Posted by LT Profits View Post
    No, not weird, that is normal. When you are parlaying teams that are all at -110, refer to the book's chart. When parlaying teams with different odds, books give true parlay odds.
    this is ****ing weird. you get little better odds by using one slightly off -110 team rather than parlay two -110 teams.

    this goes for 4,5,6,7,8 teamers as well

    good to know

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