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Do NOT buy that 1/2 point!!

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  • Do NOT buy that 1/2 point!!

    I've seen a lot of posts in this forum, many by otherwise very knowledgable handicappers, advising to buy the 1/2 point on some particular game.

    I KNOW it seems tempting to buy that +6 1/2 up to +7, and yes, given the choice of course *I'd* rather have 7 than 6 1/2. That's not the question. The question is one of mathmatical *value*. The bookmaker is "selling" you something......1/2 a point, in this case. At a certain price it's worth buying...but beyond that it's just another over-priced commodity.

    Think of it as you do insurance.....you'd LIKE insurance against everything in your house being stolen...and for a few hundred a year it probably makes sense...but what if the insurance company wanted $20,000 a year? The fact that you'd LIKE insurance is out-weighed by the fact that the price has taken the value out of it. In effect, if you buy that +9 1/2 up to +10, you are buying insurance from the bookmaker that the team you bet on won't lose by *exactly* 10 points, as this is the *only* scenario in which having not bought the 1/2 point will hurt you.

    Great....some games *do* end up on 10 points, nobody would dispute that. BUT....the question, again, is are you getting mathmatically sound value for what you're paying? Nope. If you're a dime bettor, you're paying a $100 insurance policy to protect $1,100. That's *9%*. You're paying a WHOPPING 9% premium to insure against something that happens *much* less often than one time in 11....which is the breakeven point for whether it would make numerical sense or not to buy the hook.

    I did a very comprehensive study on this...and it's not a matter of my opinion...or really even open to debate. If you buy a 1/2 point...EXCEPT onto or off of 3...you are losing money. And even at 3, it's only somewhat profitable if you're only having to lay an extra 10 cents, i.e. -120 instead of -110. And how many bookmakers let you do even THAT anymore. Most of them figured out that they were losing money by letting you buy the 1/2 off or or onto 3 for only -120 and raised it to -130..if not worse, a long time ago.

    You may say..."Well...what about X game...I bought the 1/2 and it saved me from a loss". That's like saying that you bet on red once on a roulette wheel and won, after I've told you that roulette is a losing proposition in the long run. You don't lose every roll of the roulette wheel, that's not the issue. The issue is that if you made 1,000,000 rolls, you'ld lose 5.19% of the total amount bet.

    So of course *sometimes* you'll do better if you had bought the 1/2, but that's irrelevant. The question is....what happens if you do it 1,000X, or a million times? The answer is (and again, this is simple math, and if you care to spend a WHOLE lot of time on research, which I've already done, you'll find the same answer for yourself) that you'll be WORSE off than if you'd just suffered in silence and settled for that +6 1/2, or 9 1/2 or 13 1/2...or any one of those other numbers that are so tempting to buy your way off of.

    Percentages. Percentages. You're already fighting the bookie's juice, even at Pinnacle it will shred you if you're not careful. Do NOT make any donations to the bookie by throwing money away on over-priced insurance.

    If you can't bring yourself to think this way than you have a gambler's mentality...and gamblers *always* lose in the end, which is why Caesars Palace is as plush and wonderful as it is

    If you understand Blackjack and cardcounting, you will know that you *must* hit a 16 against a dealer's 10 (unless you are counting and the count is high...but we're talking about a basic strategy player...who just wants to follow the established mathmatical rules to keep his losses to the minimum). I've sat next to people playing blackjack who KNEW this, and still refused to hit the 16 because "I've got a huge bet out and I don't want to break". It is EXACTLY this misguided attitude that can lead people to buy 1/2 points. The rules of math don't change just because you're betting more. A money-losing deal at $1.00 is just as much a money-losing deal at $10,000.

    Bite the bullet, shop for the best lines...but do NOT buy points!!

    By the way, I gave out all of the NFL plays I am personally making in an earlier post. I am also making a value bet on the NE moneyline. I'm not willing to lay all the points on this particular game, but I *am* willing to lay -375 on a simple win by NE. You don't get 27% interest in one day in the bank, an NE won't lose this game. They may not cover, but they won't let Buff have the game.

  • #2
    Percentages

    If A Gambler Makes 100, $100 Wagers,,,,to Break Even He Would Need To Win:

    $100w = (100-w)$110
    110w = 11000 - 110w
    210w = 11000
    W = 52.38 Games

    If A Gambler Buys The Half Point At 20%.

    $100w = (100-w)$120
    100w = 12000 - 120w
    220w = 120000
    W = 54.5 Games

    So Esentially You Would Need That Half Point To Help You 2 Times Out Of 100 For Everything To Be Equal. My Piece Of Mind During The Game Is Worth That Extra Risk. But That Is Just An Opinion Supported With Algebra. I Knew That Stuff Would Come In Handy One Day.
    Let's Hammer the Book.

    Comment


    • #3
      Originally posted by DBURGH
      If A Gambler Makes 100, $100 Wagers,,,,to Break Even He Would Need To Win:

      $100w = (100-w)$110
      110w = 11000 - 110w
      210w = 11000
      W = 52.38 Games

      If A Gambler Buys The Half Point At 20%.

      $100w = (100-w)$120
      100w = 12000 - 120w
      220w = 120000
      W = 54.5 Games

      So Esentially You Would Need That Half Point To Help You 2 Times Out Of 100 For Everything To Be Equal. My Piece Of Mind During The Game Is Worth That Extra Risk. .
      Good point
      Bet with your head...Not over it

      1 unit = $50
      2012 Record
      NCAA FB 0-0
      NFL 0-0

      Comment


      • #4
        I only buy 1/2 in tight situations EXAMPLE my book had eagles last weekend at 2 1/2 Bought up to 3 and pushed on 480-400 (no bet) which was a 800$ swing for me. In turn- I ended up on the + side
        A Quote' By Warren Buffet...'worlds richest Man'
        "When you get to my age, you'll measure your success in life by how many of the people you want to have love you actually do love you.That's the ultimate test of how you've lived your life."

        Comment


        • #5
          thanks for posting though good info..............
          A Quote' By Warren Buffet...'worlds richest Man'
          "When you get to my age, you'll measure your success in life by how many of the people you want to have love you actually do love you.That's the ultimate test of how you've lived your life."

          Comment


          • #6
            I think buying the .5 is just personal preference. It may not be worth it but it sure sucks when you lose buy a half and you could of bought it. Opinions are like a-- holes everybody's got one but that is mine.

            Comment


            • #7
              Your math is correct...and the amount of wins out of 100 that you need to overcome the "vig" is hardly a secret...but your logic has failed you...leading to an incorrect conclusion.

              First of all, you pre-suppose that the 1/2 point turns a loss into a WIN...which is does NOT. To accomplish *that* you'd have to buy a *full* point, taking your vig up to -130.

              More significantly, you overlook the fact that you *can't* buy onto or off of 3 without laying a larger number than -120 (except witha few, illegal books...no internet book that I have seen will let you do this). This eliminates the most common result...3, from the equation.

              All you have done is state a how many games you must win out of 100 to break even. That does not address the issue of whether it is worth having to nearly *double* your advantage over the house from 52.38% to 54.5% in order to turn a loss into a tie, or a tie into a win.

              Again, this is not a question of "peace of mind"..anymore than the choice to take insurance at Blackjack is a matter of "peace of mind". Insurance at Blackjack pays 2/1, but the odds of the dealer having a face card are *less* than 2/1, in fact the house has almost a 6% edge on every insurance bet you make...i.e. a worse house percentage than even on Double Zero Roulette. But you get "peace of mind" on any given hand by taking insurance......you just go broke in the long run.

              It's *no* different with buying "insurance" from your bookie. That extra 9% you're paying for the half point in *no* way correlates to the actual odds of that single 1/2 point saving you from a loss. If you are willing to take a bet with a *negative expectation" just for "peace of mind", you will lose money in the long run. There is simply no way around this.

              For Starky, if you have a book that will let you move onto or off of 3 for only -120, do this on *every* game. *YOU* have the long-term mathmatical advantage in this case, which is why no online books will let you do it any longer.

              I guess you could say buyint the .5 is a matter of "personal preference". But as I said earlier, if your personal preference it to take the wrong side of bets with a negative expectation, you will lose money in the long run....which is the only thing that matters.

              Originally Posted by DBURGH
              If A Gambler Makes 100, $100 Wagers,,,,to Break Even He Would Need To Win:

              $100w = (100-w)$110
              110w = 11000 - 110w
              210w = 11000
              W = 52.38 Games

              If A Gambler Buys The Half Point At 20%.

              $100w = (100-w)$120
              100w = 12000 - 120w
              220w = 120000
              W = 54.5 Games

              So Esentially You Would Need That Half Point To Help You 2 Times Out Of 100 For Everything To Be Equal. My Piece Of Mind During The Game Is Worth That Extra Risk. .

              Comment


              • #8
                Originally posted by crazystarky
                I only buy 1/2 in tight situations EXAMPLE my book had eagles last weekend at 2 1/2 Bought up to 3 and pushed on 480-400 (no bet) which was a 800$ swing for me. In turn- I ended up on the + side
                Crazy, I did the same thing and it saved me big time... I buy 1/2 point when it is 2', I'll but to 3 or vice versa....

                Comment


                • #9
                  My thought on this has always been that if you think you need to buy the 1/2 point, you should not be betting that game! You must think the line is correct.

                  GL to all and thanks to all for posting this great info.

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                  • #10
                    GREAT WRITE UP!!!!!!!!

                    I've been saying this for years. You lose in the long run, although it is tempting to buy it sometimes!

                    Comment


                    • #11
                      The only thing that puzzles me is how you talk about NOT buying points and then in the same breath lay -375 on a moneyline.
                      Personally I NEVER lay -375 in any sport no matter how good the play seems;outright upsets do happen in all sports.I think if a person plays enough huge favorites over time, he will lose even more than with buying points.
                      For me big moneyline favorites should be placed for the most part in parlays only.

                      Comment


                      • #12
                        I but that 1/2 pt a ton of times.....on 3-7-10-13-14-17-20-21-24 only..........It depends on the teams playing.......Use it mostly on 3-7-10-13 and 14........Nice write up.....

                        That 1/2 has saved me numerous times already this year....especially in the NFL.....great write up---kapt


                        Don't make me go Cajun on your Ass!

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                        • #13
                          Why Cant Buying A Half Win You A Game?

                          WHAT IS I BUY IT FROM 7 TO 7.5?
                          Let's Hammer the Book.

                          Comment


                          • #14
                            london, good article. In post # 7 did you mean double your disadvantage or advantage?

                            Did your study cover just the NFL?

                            Since point differences in scores end up on different numbers with different frequency (e.g. in the NFL i think three comes in about 8.5% of the time) did you come to any conclusions as to what would be a fair price for different lines (e.g. 6, 7, 10, etc. in the NFL?). That would be useful in comparing lines at different books.

                            Comment


                            • #15
                              Good write up. The only thing it leaves out or fails to realize is that if you get on a game early in the week, even by friday in most cases for the books I bet with, you only laying -105 at the most, sometimes +105, so I'll buy occasionlly and still have good value!
                              But yo are right in most cases it isjust too much juice!

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