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thunderfoot
2yo
Joined: 26 Jul 2006
Posts: 2
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 Posted: Wed Aug 01, 2007 11:45 am Post subject: Maths Help!! |
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The following Lay odds produce a Book Price of 112+%, so the theory is that no matter what wins, you win!!
Odds
16.50
8.80
20.00
90.00
8.00
1.60
7.20
What I can't get my head around is the 'ARB' calculation to guarantee a Return of the 12% less Betfairs 5% Commission. Struggling to determine if the calculation is based on the Stake or on the Liability?
(Lets assume £100 total .... Stake or Liability!!!)
I can work the ARB out if it's BACK odds and the Book Price is 88%!!!  |
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swift tuttle
Classic Winner
Joined: 10 Feb 2005
Posts: 868
Location: Sunderland, Tyne and Wear
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| Posted: Wed Aug 01, 2007 1:18 pm Post subject: |
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Divide the £100 stake by the decimal odds in each case:
1.6 - £62.50
7.2 - £13.89
8 - £12.50
8.8 - £11.36
16.5 - £6.06
20 - £5
90 - £1.11
Total stakes received £112.42. Total paid out £100. |
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