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  • tristello
    SBR Rookie
    • 01-22-09
    • 11

    #1
    Question for stat experts
    Hello

    I have a question:

    I have 3000 bets in my database, average odds 2.16, average winning odds 2.1, strike rate 50.59 % (2992 bets, 1461 Win, 1427 Lose, 104 void).

    My ROI is actually 5.52%.

    My question is: what is the probability my ROI is my REAL one? I don't know the math for this calculation...

    Ty for any answer
  • Buffalo Nickle
    SBR MVP
    • 11-12-14
    • 3228

    #2
    I am not a stats expert and did not sleep in a Holiday Inn last night but I do have a probability chart for such things. I believe you equate to a bit less than a 53% handicapper at -110 odds. My chart only goes out 1,000 bets but at that rate your return would be just 1.5% likely due to luck alone. At 3,000 bets, I think it's safe to say you are well under 1% due to luck.

    Don't know if that answer is good enough for you. But it is the best you have so far.
    Comment
    • Buffalo Nickle
      SBR MVP
      • 11-12-14
      • 3228

      #3
      Actually, my comparing you to a 53% handicapper is completely off. But that only decreases the chances that your performance is due to luck.
      Comment
      • bihon
        SBR Wise Guy
        • 11-03-09
        • 731

        #4
        The chance that your results are due to luck is 1/357, thus very small.

        I just answered the similar question here:
        Comment
        • tristello
          SBR Rookie
          • 01-22-09
          • 11

          #5
          ty very much for your answers I really appreciated. It was important for me knowing them before deciding to inrement my stake... thx a lot
          Comment
          • Playon
            SBR High Roller
            • 12-19-14
            • 110

            #6
            Looking good for you. I believe you are making 2-3% ROI in the future.

            However, I have seen winning punters (decades of winning betting) having losing streaks of over 3000 bets with lower odds avarage. I think that's not only mathematical question. It would be in coin tossing, but not in sportsbetting. For example those huge downswings are because of wrong estimations in some year for some series or teams and losing streak follows because of estimations done at the first place. Estimations are changed later, but shit has happened already. I think that after 3000 bets we still need to look at the man instead of numbers. How propably is these right or wrong basic estimations done again. Which kind of betting strategy or knowledge is behind the curtain.

            Anyway, convincing results here and very likely profitable betting in the future too.
            Comment
            • tristello
              SBR Rookie
              • 01-22-09
              • 11

              #7
              Ty very much, very important words for me, very helpful for my betting activity...
              Comment
              • Miz
                SBR Wise Guy
                • 08-30-09
                • 695

                #8
                i agree. barring any crazy filters, or other shenanigans you have something solid on your hands
                Comment
                • scumbag
                  SBR MVP
                  • 11-02-13
                  • 3504

                  #9
                  i was kind of wondering this.

                  no math person at all. just an someone who see's the game the right way, 750 bets over 4 seasons 1.75m risked. 238k profit.

                  whats the fish on a heater probability here?

                  i tend to make a lot of these +130/+150 ML bets. so my winning percentage isn't beyond insane, but my ROI seems insane.

                  considering what you guys are talking about with this 2% thing. again, no math expert, but it looks like mine is like 12% or something.

                  this is probably due to volume? i'd imagine, betting many games with small edges for big money can be quite profitable, im sure. where i tend to take a far more conservative approach. as you can see by only 750 bets over 4 seasons.

                  this must be why my roi is so much higher?

                  but i only know what i know, and what i know best is these small dogs that i think are going to win, and they have, more often than not. i don't know of these 'maths' and 'algorithms'. although im def jelly those people.

                  please math person, calculate this thing for me. if my sample is even large enough.
                  Comment
                  • scumbag
                    SBR MVP
                    • 11-02-13
                    • 3504

                    #10
                    and i'd also like to share my current BR strat. that ive used most the time.

                    break my roll into 20 bets. if i've got 40k, i'll fire 2k/game figuring 20 bet downswing are unlikely, and they have been, worst down was like 13 bets and i came storming back.

                    so if you could tell me the fish on a heater prob, and the risk of ruin considering my br strat?

                    if i've given enough info, thanks in advance.
                    Comment
                    • IWANTMONEY
                      SBR High Roller
                      • 02-28-14
                      • 164

                      #11
                      Originally posted by scumbag
                      750 bets over 4 seasons 1.75m risked. 238k profit.

                      whats the fish on a heater probability here?
                      I dont think you need any advice about anything - you need to be giving it
                      Comment
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