Middle vs. Arb

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  • steady hustlin
    SBR Wise Guy
    • 05-24-07
    • 687

    #1
    Middle vs. Arb
    A gentleman at the bar bet me $1000 on the patriots straight up, he's taking the Pats. I could play the pats for $700 and guarantee short money or rebet the $1k on the spread and hope for the four point middle. Lands 3 ten percent of the time and this is even better. Gut tells me bet $1k spread> ride $1k ml ev> go for the skinny arb. Any thoughts on this? Thanks.
    Last edited by steady hustlin; 01-15-14, 08:54 AM. Reason: Typo
  • NunyaBidness
    SBR Hall of Famer
    • 07-26-09
    • 9345

    #2
    Why trade in a +EV bet for a -EV bet? Just let it ride. Especially with the fact that its a bar bet and he may not pay you if it wins.
    Comment
    • Blax0r
      SBR Wise Guy
      • 10-13-10
      • 688

      #3
      You're in a great situation assuming the guy pays up (otherwise, I'd follow NunyaBidness's advice).

      pats ml +220
      broncos ml -240

      Pure hedge: $625 on pats ml guarantees $375 profit.

      Ideally though, you want to stay in such a huge +ev position, but guarantee yourself something (ie, hedge out just enough so that your risk amount is appropriate given your bankroll). Would have to think about it a little longer...
      Comment
      • steady hustlin
        SBR Wise Guy
        • 05-24-07
        • 687

        #4
        Thanks for the feedback, I appreciate it.
        Comment
        • u21c3f6
          SBR Wise Guy
          • 01-17-09
          • 790

          #5
          How sure are you that you will be paid? Otherwise this could be a very -EV wager.

          As to your wager, is $1000 a normal wager for you based on your bankroll? If so, then you could let it ride.

          However, assuming that you are sure you will be paid, you could hedge as suggested above. Reasons to hedge could be that the wager is too large for your bankroll or if you are as conservative as I am, to minimize risk and/or guarantee a profit. In addition to the equal profit hedge suggested above, you could adjust your wager to any amount of risk that you want (such as wagering $250 on the Pats at let’s assume +200 so that you are now risking only $500 to make $750) or make your risk $0 (such as wagering $500 on the Pats at +200 so that you are risking $0 to make $500).

          Joe.
          Comment
          • SportsMushroom
            SBR MVP
            • 09-28-10
            • 4177

            #6
            you should both post up and let a trustworthy 3rd party hold the cash for you guys

            cause if you are planning to pay and he's not, then he is essentially freerolling you
            Comment
            • JoeyBagels
              SBR Wise Guy
              • 03-10-13
              • 784

              #7
              Don't hedge it. You're going to get middled yourself if you're not careful if this guy stiffs.
              Comment
              • Blax0r
                SBR Wise Guy
                • 10-13-10
                • 688

                #8
                Originally posted by SportsMushroom
                you should both post up and let a trustworthy 3rd party hold the cash for you guys

                cause if you are planning to pay and he's not, then he is essentially freerolling you
                Strongly agree with this; get it arranged asap. Otherwise, I wouldn't count on that wager to be official.
                Comment
                • steady hustlin
                  SBR Wise Guy
                  • 05-24-07
                  • 687

                  #9
                  Third party is there meeting before game to give him the dough. This base is covered. Will have enough time to get down before kick. Planning on Broncos leading half to possibly make a play on other side or in gaming it. I like the play in and of itself so nothing wrong with getting a 2 to 1 favorite at EVEN.
                  Comment
                  • Blax0r
                    SBR Wise Guy
                    • 10-13-10
                    • 688

                    #10
                    Alright, now we can do some fun analysis!

                    As I alluded earlier, it makes sense to stay in such a large +ev position, but you should probably use kelly to determine how much you should risk.

                    assumptions:
                    Pats +210
                    bankroll 2000

                    calculations:
                    ev of your broncos bet: (210/310) - (100/310) = .3548
                    kelly pct: .3548/1 = 35.48%
                    kelly stake: .3548 * 2000 = 709.68

                    As per kelly, you should have 709.68 on the broncos at those odds. Placing a $290.32 wager on +210 Pats should more or less simulate this.

                    Broncos win: (1000) - (290.32) = 709.68 profit
                    Pats win: (290.32*2.1) - (1000) = -390.32 loss

                    This chart may also help you get a feel for the set of possibilities in your hands.

                    Pats ML Stake Broncos Win PNL Pats Win PNL
                    50 950 -895
                    100 900 -790
                    150 850 -685
                    200 800 -580
                    250 750 -475
                    300 700 -370
                    350 650 -265
                    400 600 -160
                    450 550 -55
                    500 500 50
                    550 450 155
                    600 400 260
                    650 350 365
                    700 300 470
                    750 250 575
                    800 200 680
                    850 150 785
                    900 100 890
                    950 50 995
                    As for the middle, I'm not sure if it actually adds value. The Broncos ML leg is definitely +EV, but combining it with a presumably fair Pats Spread leg (to complete the middle) shouldn't increase your overall expected value?

                    Other SBR bros please check my math/line of thought!
                    Comment
                    • Sawyer
                      SBR Hall of Famer
                      • 06-01-09
                      • 7720

                      #11
                      You get Broncos at +100.
                      And Pats +208 at Pinnacle.


                      You have 4 options,


                      Riding the EV+ bet,
                      Picking Pats plus points and hoping for middle bet to hit,
                      Hedging for %21 arbitrage profit.
                      The Freebet

                      First of all, don't bet middle. I like middle bets but they rarely hit. And I wouldn't trade a golden opportunity like this for a middle. There's a %21 arbitrage. Believe me, even a Master Arbitrage Trader can find an opportunity like this very rare..

                      Your bet is EV+. If you let it ride, you will win over long haul but let me underline, "over long haul". If you have this opportunity only once, then hedge for %21 arbitrage profit.

                      Another option,

                      If you like Broncos' chance to win, then you can make yourself a FREEBET.

                      By betting Pats for 481$!

                      If Pats win, you will pay the guy 1000, but you win 1000$ by betting Pats. You're breakeven.
                      If Pats lose, you lose 481$ but you get 1000$ from the guy, you're +519$.

                      If you're comfortable financially and you like Broncos' chance to win, then pick Freebet. Otherwise, hedge for profit, no stress. Just make sure you don't pick the middle.

                      Make sure you shop around for the best line. Maybe you can find a higher price for Pats ML. GL!
                      Last edited by Sawyer; 01-17-14, 08:09 PM.
                      Comment
                      • steady hustlin
                        SBR Wise Guy
                        • 05-24-07
                        • 687

                        #12
                        Awesome feedback, thank you very much.
                        Comment
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