The home of intelligent horse racing discussion
The home of intelligent horse racing discussion

Compiling A Tissue

Home Forums Archive Topics Trends, Research And Notebooks Compiling A Tissue

Viewing 17 posts - 1 through 17 (of 73 total)
  • Author
    Posts
  • #13692
    davidjohnson
    Member
    • Total Posts 4491

    Anyone with an interest in this, rather than getting bored to tears by gingertipster (just kidding mate!), might want to check out the RUK Kempton replay loop currently showing. Eddie Fremantle and Richard Hoiles going through it in detail and rather just theorising actually trying to put it in to a practical example.

    I’m sure for plenty of you it will be like teaching granny to suck eggs, but someone might find it of interest.

    #267401
    Avatar photoGingertipster
    Participant
    • Total Posts 32970

    :lol: (boring, moi, surely not. :wink:).
    And I am away from my TV. Can’t see it. Is it anything I’d learn from David?

    About time the media did something about it.

    (Don’t worry I’m not going to go on about it). :roll: :D

    Value Is Everything
    #267403
    davidjohnson
    Member
    • Total Posts 4491

    I don’t know tbh honest. I found it interesting even if I can’t say I learn’t something I didn’t already know.

    One thing I would have liked them to have hammered home that they didn’t, is that compiling tissues isn’t the holy grail to making money, if you haven’t got a clue what price each particular horse should be.

    #267407
    moehat
    Participant
    • Total Posts 9300

    Why is it called a tissue??

    #267412
    Avatar photoGingertipster
    Participant
    • Total Posts 32970

    Why is it called a tissue??

    Because if you ain’t got a clue how to do it, you will (as the rhyme says) eventually "all fall down". :lol:

    Value Is Everything
    #267415
    Avatar photoGingertipster
    Participant
    • Total Posts 32970

    I don’t know tbh honest. I found it interesting even if I can’t say I learn’t something I didn’t already know.

    One thing I would have liked them to have hammered home that they didn’t, is that compiling tissues isn’t the holy grail to making money, if you haven’t got a clue what price each particular horse should be.

    Very true David, although if you do know how to do do it, then it is the Holy Grail. Judging by my results, I used to know the Holy Grail. :lol:

    Value Is Everything
    #267424
    Avatar photoExpect To Win
    Member
    • Total Posts 185

    I have never been able to comprehend how anyone can back or lay a horse just because the price is different from what they think it should be.

    #267426
    Kopwas
    Participant
    • Total Posts 148

    Any summary please? I don’t subscribe to RUK but would have liked to see this. It’s something I need to learn.

    #267455
    Avatar photoGingertipster
    Participant
    • Total Posts 32970

    O.K. just for Expect To Win and Kopwas. The rest of you can look away now. :wink:
    Here is something I prepared earlier which explains the principles.

    Logic in simple terms to explain the way of value betting:

    Every punter knows for each £ he / she stakes on a 3/1 winner, he gets £4 returned (winning £3 plus £1 stake back).
    For every 100 bets of level stakes at 3/1 a punter must win 25 to break even (25 X 4 = 100). Staking 100 points and getting 100 back. If he wins more than 25 he will make a profit, less than 25 will result in a loss. Therefore, 25% = true odds of 3/1. So a punter should only back a 3/1 shot if he believes it has a better than 25% chance of winning.

    Gamblers want to know “who’s going to win”? But they should not necessarily back the horse with “the best chance of winning”. The important question is “in your opinion, who is VALUE to win”?

    Bookmakers stay in business by betting to an over-round figure. In a four horse race with a competitive market he may offer:

    A 11/8 (you need a 42.1% strike rate at 11/8 to break even), B 15/8 (34.8%), C 100/30 (23.1%), D 12/1 (7.7%).
    42.1 + 34.8 + 23.1 + 7.7 = 107.7.2%
    Working to 107.7% for an over-round of 7.7%.

    Yet betting is all about opinions, bookmakers prices might not be right. If after studying form of the race above a punter believes:

    A has a 40% 6/4 chance of winning.
    B 30% almost 9/4
    C 20% 4/1
    D 10% 9/1
    All four adding up to 100%.

    Comparing the punters prices to bookmakers; the only horse at a better price (value) with bookmakers is D at 12/1. D is the only possible bet, despite in the punters own opinion having the worst chance of winning. Quarter of A’s chance, a third of B’s and half of C. With a 10% strike rate at 12/1 showing a profit. Where as a 40% strike rate at 11/8, 30% at 15/8 and 20% at 100/30 all resulting in a loss.

    In some races like novices or maidens it is difficult to work out a 100% book. But being able to see a price as a percentage and vice versa makes it easier to make an informed opinion if something is value or not.

    To calculate the percentage each price is worth, add a point and divide by 100.
    So 3/1 = 3 + 1 = 4, 100 ‘/, 4 = 25%.
    100/30 = 3.33/1 + 1 = 4.33, 100 ‘/, 4.33 = 23.1%
    And so on.
    For odds in decimals (what you see on betfair or tote) there is no need to add the 1; just divide 100 by the figure. 4.0 is the same as 3/1. So 100 ‘/, 4 = 0.25 = 25%

    Here are the prices and their percentages.
    Evens 50, 21/20 48.8, 11/10 47.6, 6/5 45.5, 5/4 44.4, 11/8 42.1, 6/4 40, 13/8 38.1, 7/4 36.4, 15/8 34.8, 2/1 33.3, 85/40 32, 9/4 30.8, 5/2 28.6, 11/4 26.7, 3/1 25, 100/30 23.1, 7/2 22.2, 4/1 20, 9/2 18.2, 5/1 16.7, 11/2 15.4, 6/1 14.3, 13/2 13.3, 7/1 12.5, 15/2 11.7, 8/1 11.1, 17/2 10.5, 9/1 10, 10/1 9.1, 11/1 8.3, 12/1 7.7, 13/1 7.1, 14/1 6.7, 15/1 6.2, 16/1 5.9, 18/1 5.3, 20/1 4.8, 22/1 4.3, 25/1 3.8, 28/1 3.4, 33/1 3, 40/1 2.4, 50/1 2, 66/1 1.5, 80/1 1.2, 100/1 1, 132/1 0.75, 150/1 0.66, 200/1 0.5, 250/1 0.4, 300/1 0.33, 400/1 0.25, 500/1 0.2, 800/1 0.125, 1000/1 0.1, 2000/1 0.05

    For odds-on percentages, subtract the odds-against equivalent from 100.
    So for 4/6, 6/4 = 40% , 100 – 40 = 60, therefore 4/6 = 60%

    For an Evens shot to be a good bet you must obviously believe it to have a better than 50% chance of winning, 21/20 48.8%, 11/10 47.6% and so on. Though a margin for error should be factored in. Few gamblers are 100% accurate, so it may be best not to back what you consider a true 4/1 shot at 9/2 but to do so at 5/1 or more. Alternatively, work out a race to smaller than 100%, (say 95%) which gives a built in margin for error

    You did ask! :lol:

    Value Is Everything
    #267459
    Avatar photorobnorth
    Participant
    • Total Posts 7508

    Why is it called a tissue??

    It may be that it’s because it’s a ‘cold start’ go at estimating the market. The start of a cold, so either a corrpution of ‘atishoo’ or requiring a tissue. Only my guess at the derivation I hasten to add.

    My own tissue is calculated to 80% thus giving me an accurate indication of anything well on the right side from my point of view.

    #267460
    Avatar photoThe Ante-Post King
    Participant
    • Total Posts 8695

    (Don’t worry I’m not going to go on about it). :roll: :D

    You lying B*****d! half a page later!

    #267465
    gumshield
    Member
    • Total Posts 119

    Thanks for the nudge, David.

    A typically no-nonsense half hour from RH and EF, and I’m sure plenty of viewers will have found it useful.

    #267466
    davidjohnson
    Member
    • Total Posts 4491

    I thought you would have seen it gumshield. I know you don’t like to miss a Kempton AW meeting!

    #267468
    gumshield
    Member
    • Total Posts 119

    As you know, David, my penthouse flat overlooks the back straight, but as usual I’d drawn the curtains.

    #267470
    Avatar photoGingertipster
    Participant
    • Total Posts 32970

    Why is it called a tissue??

    It may be that it’s because it’s a ‘cold start’ go at estimating the market. The start of a cold, so either a corrpution of ‘atishoo’ or requiring a tissue. Only my guess at the derivation I hasten to add.

    My own tissue is calculated to 80% thus giving me an accurate indication of anything well on the right side from my point of view.

    How many bets do you have with an 80% book Rob?

    One or two a month?

    Value Is Everything
    #267472
    Kopwas
    Participant
    • Total Posts 148

    Thanks I’ll have a good read of that :D

    #267473
    Avatar photoExpect To Win
    Member
    • Total Posts 185

    Ginge thanks for efforts to elucidate alas I fear I am beyond help.
    Ie.
    "So a punter should only back a 3/1 shot if he believes it has a better than 25% chance of winning."

    How can it be established that your 3/1 selection has a better than 25% chance of winning. How do you establish the difference in merit from the other three quarters of your selections also calculated at 3/1 with a supposedly equal chance.

Viewing 17 posts - 1 through 17 (of 73 total)
  • You must be logged in to reply to this topic.