22 February 2025

18 thoughts on “5 Simple Steps to Win Over and Under Betting

  1. Hi. I’ve read the article and i tried to check this strategy if it’s worths trying but no success. In what moment shall i select the highest odds and why these? Can you help me with some info? How are the clusters calculated? How the average odds (home and away) we’re included in quotients between 100.0000 and 38.741. I wait for your answer. Thank you.

  2. As a novice this statement seem ludicrous:

    “Bookmakers seldom price their odds to represent the true probabilities. They set odds that follow the public opinion.”

    I always thought the exchange odds at least are the real odds.

    1. Hi Andrew,

      Odds move throughout the ante-post period right up until kick-off based on the weight of money placed by punters. Exchange odds follow the bookmaker lead – they have to, otherwise, there would be arbitrage opportunities everywhere. Accounting for the commission element of exchange odds, they are usually around the same as the leading bookmakers at whatever time you check them.

      Rarely do odds represent the true statistical likelihood (based on past statistics) of any particular outcome. A bookmaker may open his book (sometimes months ahead of the event) at the absolute true odds figure, but they cannot possibly stay at the same level – they must either increase if public demand is stronger for the reverse outcomes or decrease if punters are heavily backing, for example, a hot favourite.

      I hope this helps in some small way.

    1. Hi Zinphyo,

      Divide your stake by the odds-minus-one.

      For example, odds are 1.98. Your desired win is 100.

      100 divided by 0.98 = 102.04, which is the stake needed to win 100 units at odds of 1.98.

      I hope this helps!

  3. I am sorry for posting these questions under this topic since its about the cluster tables. But here you teach about laying. Ok, I’m using the value calculator. My first question is that how do I identify the lay candidates. Since under over bets are value bets if the yield is bigger than relative standard deviation. But are the bets with smaller yield than relative standard deviation good for laying? Also I’d like to know if it’s good idea to play all the bets that are for value for one match. I mean if I have 3 value bets for let’s say under 2.5 3.5 and 4.5. Is it good practice to play those all or just pick the best bet for my taste? Currently I pick one bet for a match. But is it better this way or the other I mentioned?.

    1. Hi Jari,

      Generally speaking, yes, bets with a yield smaller than RSD are worthwhile looking at from a lay perspective.

      But to guide you further and also answer your question about whether to play a range of over/under bets in the same match, I’m afraid you will have to paper test to see what works and what doesn’t.

      Each league is different, so what works in one league may not necessarily work in the next.

      From a personal perspective, I would only take one bet of the same bet type per match as I am risk averse and would not gamble on losing three times on the same result. But everyone is different and has their own personal taste. It’s your decision, sorry!

      Thanks for the comment.

  4. Hi Soccerwiddow,

    I really appreciate your work and I do always have a good read here. But, considering the method above and trying this by myself it somehow becomes really dependent on the choosen clusters, of course. More precise, I can cluster teams easily to achieve a good ROI in the past but applying those clusters on future games seems not worth doing so. What is your way of clustering? I played around with that a while, but was never able to achieve a positive return over a longer time intervall. Maybe you can give a hint 🙂

    Best, Thomas

    1. Hi Thomas,

      it’s all about distributions… assuming that you calculated correctly, you will probably achieve a hit rate as expected (in the long run) and you have also probably ensured that you have the mathematical advantage on your side (a positive Yield/Profitability expectation) but unfortunately, the really observed results (almost) never line up like little soldiers in a straight line.

      Here are three random scenarios of the same betting strategy: 55% probability (what are usually the Over 2,5 goal bets in the BL1) with an expected Yield of 15% (right click the images to enlarge them in a new window):

      .

      55% prob + 15% yield simulation PL - v3

      Above scenario is the gamblers dream… the profit/losses line up in a nice regular manner. Unfortunately, this happens much more rarely that you would think.

      .

      55% prob + 15% yield simulation PL - v1

      In above second scenario the gambler needs approx. 120 bets until finally his P/L starts picking up.

      .

      55% prob + 15% yield simulation PL - v2

      The image above is a “worst case” scenario – 240 bets, and nothing happens!

      .

      Please note that image #1 and image #3 (best case and worst case scenarios) achieve at the end similar profits.

      There are thousands and thousands scenarios how a random distribution may line up. I’m really sorry but there is absolutely nothing you can do about it except of being very patient. What helps is to increase the probability to win, or even consider arbitrage betting.

  5. Hi there, interesting stuff – just tried it myself on some of the data I had for the premier league; looks promising. One question though, why are the odds ranges different for the away side than at home?
    Intrestingly, around the point you made on the timing of analysing the data; when I looked @ Arsenal v Liverpool (both home and away), the ranges seemed pretty consistent for the last few years, so the point at which you review the odds available, seems to make little difference as you suggest.

  6. Hi, bought the o/u course and have the bundesliga tables for 2012-17 but the password for the GD by Team sheet on the legal tab doesn’t seem to work.

    Could you let me know what the real password is?

    Thanks

    1. Hi Jamie, I’ve just sent out an update email. Please check your emails and download the spreadsheet again. The password was wrong. Sorry for your troubles!

  7. Hi,
    Is there any way how to calculate over/under odds for 2 goals if I know lines for over/under 1.5 goals and lines for over/under 2.5 goals?
    Example:
    Total Odds
    Over 1.5 1.25
    Over 2.5 1.8
    Under 1.5 4.6
    Under 2.5 2.2
    Over 2 ???
    Under 2 ???

  8. Out of interest, is the odds clusters approach preferred to using the value bet calculator? Is one approach considered more accurate than the other by yourselves?

    Thanks.

    1. Hi Scott,

      The OU Odds Clusters are more a tool for systematic betting as they allow you to analyse many games in a very short period of time to produce a diversified portfolio of bets.

      The VC calculates ‘Value’ for many bet types, not only Over/Under bets, but requires more time to be filled in. Furthermore, the VC shows ‘value I’ and ‘value II’ – these are indicators for the profitability of a bet and the expected Yield.

      Sorry, but I cannot go in any deeper explanation. The topic is too complex and required a whole course. There are both approaches explained in great detail.

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