Glicko-2

Discussion in 'Off Topic Chat' started by Philosorapter, Jul 15, 2018.

  1. Philosorapter

    Philosorapter Well-Known Member

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    Hi all,

    Now that I am a little better from my health hiccup I wanted to try something a little bit different this season.

    Does anyone remembers the Coventry Telegragh article about the Sky Sports predictor, "Elo"?

    Coventry City's predicted promotion prospects

    Its basically an old chess rating system.

    Well, let's add some bells and whistles to it and update it a little.

    The home page of Glicko-2 can be found here.

    Mark Glickman's Home Page

    More technical stuff is in here.

    https://www.englishchess.org.uk/wp-content/uploads/2012/04/The_Glicko_system_for_beginners1.pdf

    Even more technical stuff.

    (PDF) A Comparison between Different Chess...

    I certainly don't understand this but it is what the main chess servers use to rate the players that frequent there.

    I've been having a late night look around the net and found a Glicko-2 calculator.

    The ratings deviations doesn't show up on the website so I would recommend waiting until past the twelfth game for the RD to drop from 350 to 50. This is where there is confidence in the rating that it is in close proximity to the playing strength of the side.

    This is all Public Domain stuff.
     
    Last edited: Jul 15, 2018
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  2. Philosorapter

    Philosorapter Well-Known Member

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    Rating deviation approximately 350.0 - All ratings are provisional.

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    Last edited: Aug 4, 2018
  3. Philosorapter

    Philosorapter Well-Known Member

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    Strange that they have come out backwards!
     
    Last edited: Jul 15, 2018
  4. Otis

    Otis Well-Known Member

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    Glad you are a bit better.

    Why risk your health though and come on to this plague-ridden place?
     
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  5. Philosorapter

    Philosorapter Well-Known Member

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    There is nothing like hanging around sports forums. No better place to meet Humanity.
     
  6. Otis

    Otis Well-Known Member

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    Yeah, but then you also get CC4L and Grendel too.
     
  7. Philosorapter

    Philosorapter Well-Known Member

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    I'm also stating my intention to clear Nick out at the SBT Bookies!
     
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  8. Philosorapter

    Philosorapter Well-Known Member

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    Okay, I think today is a safe firm bet of twelve home wins, with an optional bet of correct score being 1-0.

    With the idea of home advantage and the most common repeating score in the top four divisions in the football pyramid over the past hundred years or so.
     
    Last edited: Aug 4, 2018
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  9. wingy

    wingy Well-Known Member

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    Ditto what Otis said
    Glad your health has picked up!
     
  10. Philosorapter

    Philosorapter Well-Known Member

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    Cheers.

    It should be interesting to watch the volatility in the ratings until they come out of provisional mode.

    I have a cunning plan where I can watch the rating deviation, if the website has set it up correctly, and keep track of it for everyone.

    Done something like this before. I was one of ones that cleared up the mess on a server caused by Steve Rosenberg.

    Cheating Accusations in Mental Sports, Too

    Do I have a few stories to tell :-)
     
  11. wingy

    wingy Well-Known Member

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    Haha
    Read that
    A pair of Glasses or a chip under the skin?
    Maybe
    Or memorised,choreographed ?
     
  12. Philosorapter

    Philosorapter Well-Known Member

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    Last edited: Aug 4, 2018
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  13. Philosorapter

    Philosorapter Well-Known Member

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    Rating deviation approximately 285.2 - ratings are provisional

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    Completed matches

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    Last edited: Aug 12, 2018
  14. Philosorapter

    Philosorapter Well-Known Member

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  15. wingy

    wingy Well-Known Member

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  16. Philosorapter

    Philosorapter Well-Known Member

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    Results for 11th August..

    Ratings are provisional (RD around 261.8)

    With a draw against the stronger rated AFC Wimbledon, Coventry rises 38 rating points and two places.

    IMG_1101.PNG
     
    Last edited: Aug 12, 2018
  17. Philosorapter

    Philosorapter Well-Known Member

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    The system seems to be working, choosing a favoured team over a challenger but it's very early days.

    A monkey, given enough time on a typewriter, can knock out the complete works of Shakespeare.
     
    Last edited: Aug 12, 2018
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  18. Philosorapter

    Philosorapter Well-Known Member

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    Next week choices are...

    IMG_1105.PNG

    The first person to work out the colour coded scheme gets ten points..
     
  19. Philosorapter

    Philosorapter Well-Known Member

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    Results for 18th August..

    Ratings are provisional (RD around 255.7)

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  20. Philosorapter

    Philosorapter Well-Known Member

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  21. Philosorapter

    Philosorapter Well-Known Member

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  22. Philosorapter

    Philosorapter Well-Known Member

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    Results for 19th August...

    IMG_1163.PNG
     
  23. Philosorapter

    Philosorapter Well-Known Member

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    Results for 21st August...

    IMG_1179.PNG
     
  24. Philosorapter

    Philosorapter Well-Known Member

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  25. Philosorapter

    Philosorapter Well-Known Member

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    Ratings as of 22nd August

    Ratings are provisional.

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    Last edited: Aug 23, 2018
  26. Philosorapter

    Philosorapter Well-Known Member

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    Ratings are still as volatile as anything but less then they were a few games ago.
     
    Last edited: Aug 22, 2018
  27. Philosorapter

    Philosorapter Well-Known Member

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    Ratings as of 25th August..

    Ratings are provisional.

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    Next week choices.

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  28. Philosorapter

    Philosorapter Well-Known Member

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    Ratings as of 1st September.

    Ratings are provisional.

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    Next week choices.

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    Last edited: Sep 2, 2018
  29. Philosorapter

    Philosorapter Well-Known Member

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    Ratings as of 8th September

    Ratings are provisional.

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    Next weeks choices.

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  30. Philosorapter

    Philosorapter Well-Known Member

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    Ratings as of 9th September.

    Ratings are provisional.

    IMG_1329.PNG
     
  31. Philosorapter

    Philosorapter Well-Known Member

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    Ratings as of 15th September.

    Ratings are provisional.

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    Next weeks choices.

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  32. Philosorapter

    Philosorapter Well-Known Member

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    Just to spice things up a little with the 'home and away' stuff in conjunction with ranking being a collection of both data sets cancelling the 'home and away' argument out over time.

    When playing at home (white) I would usually assume that my rating is going to be higher, and my opponents rating (black) is lower then what is prescribed in the rating table, and visa versa for playing away from home.

    The argument for this, I assume, has many branches both objective and subjective.

    We have the same thing with chess when playing white or black.

    First-move advantage in chess - Wikipedia
     
    Last edited: Sep 21, 2018
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  33. Philosorapter

    Philosorapter Well-Known Member

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    Ratings as of 22nd September.

    Ratings are provisional.

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    Next weeks choices.

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  34. Philosorapter

    Philosorapter Well-Known Member

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    Ratings as of 29th September.

    Ratings are provisional.

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    Tuesdays choices.

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    Last edited: Oct 2, 2018
  35. Philosorapter

    Philosorapter Well-Known Member

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    Ratings as of 2nd October.

    Riatings are provisional

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    Choices for Saturday.

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