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23 November 2018 7 comments
circusmonkey circusmonkey
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The Tottenham versus Chelsea fixture is an issue this week, with the Ladbrokes odds giving both teams low a probability of a clean sheets. I’ll compare their clean sheet odds in percentage terms with other teams.

Wolverhampton Wanderers have the highest chance of a clean sheet. At 58.8%, that’s above Liverpool in Gameweek 12; such is the record of Huddersfield’s attack.

Manchester City, Manchester United and Everton (50%) are next most likely, and Arsenal (27%), Chelsea (25.6%) and Tottenham (25%) have a much slimmer chance. All six teams in the fixtures at Brighton, Burnley and Fulham (yes, even Fulham) have higher probabilities of a clean sheet than those three London teams.

Attacking returns

I use the concept of expected points which basically adds the returns from each outcome, weighted by their probability. If you have a 50% chance of 2 points and a 50% chance of 6 points then you ‘expect’ 4 points, even though getting exactly 4 is unlikely.

Richarlison for captain?

At the time of writing, Richarlison has a clear lead in the gameweek 13 captain poll. There has been much discussion in the Community regarding Sergio Aguero’s poor away form.

Two players have a higher expected points total than Richarlison: Mohamed Salah (9.15 points) and the aforementioned Aguero (8.87 points). Aguero is a 60% any time goal scorer bet, with Salah at 52.4% and Richarlison at 44.4% (8.63 points expected).  Raheem Sterling comes in at 8.28 points, Anthony Martial at 7.5 points and maverick pick Matt Doherty at 6.59 points.

Observation tells me that Bookmakers derive prices in quite a formulaic way. They don’t have feelings like ‘he’s going to do fantastically or blank’, or even make observations about away form. Expected team goals will have an impact and Manchester City have the shortest victory odds this gameweek. If you play the TalkSport Predictor game, you should have your banker chip on Manchester City. It is tempting to say that Richarlison is a riskier pick than Aguero with more upside but his hat-trick odds are 4.35% versus 11.76% for Aguero.

Brooks or Fraser?

The Community has discussed downgrading Ryan Fraser to David Brooks to save money as Bournemouth’s fixtures stiffen. According to Ladbrokes, that isn’t a downgrade, with Brooks a 27.8% any time goal scorer chance and Fraser at 26.3%. You could postulate that Fraser’s assist odds would be shorter if these were offered. I doubt this given my observation on formulaic pricing.

Who to bench?

Depending on the quality of your bench, you could bench a player for a tough fixture. I’d advise against a bench full of fodder as we enter the busy period.

Kieran Trippier has an expected return of 3.97 points. Only slightly better are Roberto Pereyra (4.07), Hector Bellerin (4.17), Marko Arnautovic (4.35), Ryan Fraser (4.48) and Marcos Alonso (4.53). David Brooks (4.79) beats all these, as does ghost ship passenger Ruben Neves (5.16).

Who will you be captaining this week?

If the bookmakers can ignore Aguero’s away form, should you follow?

Are you prepared to bench a normal starter for a tough fixture and if not, is this because your bench leaves you no option?

 

7 Comments Login to Post a Comment
  1. MMN
    • 12 Years
    7 years, 3 months ago

    Bench Arnie vs City or Gray vs Brighton?

    1. Ajaxeeding
      • Fantasy Football Scout Member
      • 7 Years
      7 years, 3 months ago

      I’m benching Arnautovic.

      Patricio
      Alonso - Robertson - Doherty - Digne
      Salah - Hazard - Fraser - Martial
      Aguero - Mitrovic

      Bench: Hamer; Arnautovic - Billing - AWB

    2. only1shoco
      • 9 Years
      7 years, 3 months ago

      I’m leaving him in. I reckon he’ll steal a goal or stick in a peno at some point and I’m hoping city don’t keep a cs!!

  2. Steviedwex
    • Fantasy Football Scout Member
    • 7 Years
    7 years, 3 months ago

    On WC - Gtg?

    Fab button ( is Steele or button Ryan best back up)?
    Alonso Laporte TAA Bennett AWB
    Hazard sterling Richarlison mane Gibbs-White
    Aguero Arnie Jiménez

  3. WesMantooth
    • 15 Years
    7 years, 3 months ago

    Good read!
    But do yo really think that checking one bookie is the best way of calculating odds to percentages? You also dont seem to factor in the bookies profitmargins. This makes the percentages less accurate. The profitmargins will probably be different in the different markets you've studied, which makes the comparisons you've made kind of inaccurate.

    Not having a go, I think its great that someone is shouting the odds, and doing a job of showing what the implied likelihood of the odds are. Just seems it could be more accurate

    1. circusmonkey
      • Fantasy Football Scout Member
      • 15 Years
      7 years, 3 months ago

      Hi,
      I haven't gathered data from multiple bookies due to time constraints but also I don't think they will be vastly different, although other bookies might not even offer the same markets (e.g Ladbrokes offer odds for exactly 1, 2 or 3 goals for a player). Ladbrokes are an established company, they'll have an established way of setting odds.
      I haven't factored in profit margin, I didn't want to go over ground I covered in my first article. Whilst the %age probabilities quoted will be lower than the odds suggest, the comparison between them still stands - the rank order is unlikely to change. I don't believe the theory that profit margins will differ greatly because we are not talking about mass public popular bets here (like on England in a major tournament where they have to cover their exposure). All we want is a comparison rather than exact probabilities.
      I should have put in the expected goals for Manchester City and Everton and that is something where you can remove the profit margin because the odds cover all possibilities. Have a look at the 'Team Goals' tab on Ladbrokes and you'll see the difference.
      Thanks for your feedback.

      1. WesMantooth
        • 15 Years
        7 years, 3 months ago

        Cheers! Thanks for the reply.
        Actually agree with most of what your saying, and I do think the article gives a fairly good comparison of teams/players based on bookies odds. I do have some suggestions though.

        - gathering data from multiple bookies really isn't that timeconsuming. Sites like betbrain.com gather odds from multiple bookie and the site and the markets are very easy to navigate.
        - allthough your aim might be comparison and not accuracy, it seems unnessecary to not opt for the most accurate way of gathering data. The comparisons will be better if the accuracy is better.
        - the profitmargins will actually matter a fair bit. Bookies wont have the same margins in all their markets. This means that comparing players where you've collected data from different markets will be worse than when comparing players where you've collected data from similar markets.

        A little example:
        Ladbrokes has Arnie @ 3.40(29.4%) for anytime goalscorer.
        Ladbrokes also have Arsenal to keep a Clean @ 3.90(25.6%)
        Is Arnie (solely based on goal v Clean) a better choice?
        I'll suggest that the answer is no.
        -The highest odds I've found of Arnie scoring is 4.35
        the only odds i've seen from betting against Arnie scoring was priced 1.20, suggesting Arnie's likelyhood of scoring is less than 20%.
        - the highest odds Ive found of Arsenal keeping a Clean is 4.15, and the lowest Ive found against the Clean is 1.25, suggesting that the likelyhood of Arsenal keeping a Clean is less than 25%.