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  1. #1

    Default If you ever thought of using Martingale, today's your day.

    Redwings

  2. #2

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    Quote Originally Posted by raiders72002 View Post
    Redwings
    Those are heavy odds. -180 tonight--- if they lose, which they wont, they'll be even higher tommorow. Anythings possible but it is a good situation.

  3. #3

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    Quote Originally Posted by InTheHole View Post
    Those are heavy odds. -180 tonight--- if they lose, which they wont, they'll be even higher tommorow. Anythings possible but it is a good situation.
    Nice avatar.

    SBR Founder Join Date: 8/10/2005


  4. #4

  5. #5

    Default

    thats a terrible martingale

    if they lose tonight, and especially if they lose game 5, you do not want to be making huge bets on them

    of course theyll win tonight though

  6. #6

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    does martingale work with odds that are -200+ ?

  7. #7

  8. #8

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    AAO u idiot

    u call urself a gambler?

    And martingale doesnt work, strictly speaking, regardless of the odds

  9. #9

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    Quote Originally Posted by mathdotcom View Post
    AAO u idiot

    u call urself a gambler?

    And martingale doesnt work, strictly speaking, regardless of the odds
    why do constantly follow me around and insult me...

  10. #10

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    yes i only follow your posts, kid

    i just come across your posts and they are invariably stupid

  11. #11

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    Quote Originally Posted by mathdotcom View Post
    yes i only follow your posts, kid

    i just come across your posts and they are invariably stupid
    The same could be said for some of your posts, but I dont feel the need to spread negetivity all the time...

  12. #12

  13. #13

    Default

    And martingale doesnt work, strictly speaking, regardless of the odds
    The odds of Martingale working over 4 games at pk em are 15 out of 16. The odds of Martingale working on odds that Det will be given are much greater, a guess would be 70 out of 71. Martingale is almost a sure thing used short term.

    The problem is that long term sooner or later you'll take a beating.
    Last edited by raiders72002; 05-14-08 at 09:24 PM.

  14. #14

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    raiders, you really think someone couldnt strickly use ** to bet?

  15. #15

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    raiders, you really think someone couldnt strickly use ** to bet?
    no, sooner or later you'll run out of funds or you'll be above the max limit that you can bet.

  16. #16

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    what about if someone used strick disipline and never increased the size of their bet?...

  17. #17
    Ganchrow's Avatar Become A Pro!
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    Quote Originally Posted by raiders72002 View Post
    The odds of Martingale working over 4 games at pk em are 15 out of 16.
    Taking it a step further ... if the games were all offered at -110, then a loss of the Martingale series would result in a loss of 18.4481 units, while a win of the series would result in a gain of 1 unit.

    This is the equivalent of US-style odds of -1844.81.

    Odds of -1844.81 on a bet winning with probability 15 16 implies vig of 1.1682%, while vig of 1.1682% on a bet winning with probability 1 16 implies odds of +1481.31.

    So ... a a 4-tier Martingale all at -110, has the exact same characteristics of a bet on the favorite at an unbiased market of -1844.81 / +1481.31. Now granted that is a pretty tight market but is it really what a Martingale player is looking to accomplish?

    What about you, AAO? Are you satisfied betting chalk at low vig?

    SBR Founder Join Date: 8/28/2005


  18. #18

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    Ganch, Let me see if what you think about this...Im gonna try this system but only in the playoffs. I will use the martingale system in every playoff series only betting dogs...It seems to me that you get great odds on dogs in the playoffs and they always win at least 1.

    If this someone was disiplined enough...could a system like this work?
    Last edited by AgainstAllOdds; 05-14-08 at 09:58 PM.

  19. #19

  20. #20

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    Quote Originally Posted by DrunkenLullaby View Post
    No.

    care to explain why?

  21. #21

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    lol

    If I had a nickel for every moron on here who thinks it's okay to play russian roulette... but uhh.. only like..uh.. once or twice..

    Two words: expected value

  22. #22

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    Perhaps there might be a minor problem with the phrase "they always win at least 1".

    I dunno. Ask the Nuggets...or the Avalanche....or the Senators. Maybe they could help you.

  23. #23

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    If I had a nickel for every moron on here who thinks it's okay to play russian roulette... but uhh.. only like..uh.. once or twice..

    Two words: expected value
    I'll bet you have no idea what the expected value is of using martingale two times.

    just screwing with a math guy.

  24. #24
    Ganchrow's Avatar Become A Pro!
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    Quote Originally Posted by AgainstAllOdds View Post
    care to explain why?
    You can't change a collection of -EV bets into a +EV bet simply by selecting a sufficiently creative (although there's nothing particularly "creative" about Martingale) staking strategy.

    In that sense there's absolutely nothing to be gained betting Martingale.

    Now that said, one thing you can accomplish with Martingale is the lowering of your effective vig (calculated as a percentage of max possible loss). For example ... if we assumed a 4-game series with each game offered at odds of +300 and at 4.545% vig (an admittedly unlikely scenario -- but we're just keeping it simple), then by Martingaling the 4-game series you'd "lower" your vig to 2.870% (loss = 2.160 units, win = 1 units, win prob = 66.40%).

    This would result in a bet on the favorite NOT to sweep at odds of about -216.

    Now if that were the bet you really wanted to make, AND if you were assured you'd be able to make each bet at +300 even after the previous game had been decided, AND if the odds on the favorite not to sweep as a single bet were worse than -216, then indeed the Martingale series would provide your best value.

    But that's the union of the 3 necessary conditionals that in reality probably won't hold. Of course even if they did, the above analysis completely overlooks the issue of risk. Even if the games were (equivalently) +EV and independent of previous results, there would be no reason (now from a Kelly perspective) to ever increase your bet size after a loss. Ever. You'd be decreasing your bet size after each loss (and you'd keep betting even after a win).

    If you want to bet Martingale you should only do so because you find it fun (the satisfaction of the above 3 conditions within a sufficiently risk-neutral framework notwithstanding -- and I'll also mention that the fun you initially envisioned at the start of the series would likely be a fair bit greater than the fun you actually experienced after 3 consecutive losses); but if you think you've found some sort of sensible betting system in Martingale then you're sorely mistaken.

    SBR Founder Join Date: 8/28/2005


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