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Chess rating system


  • 7 years ago · Quote · #161

    normajeanyates

    This thread is humourous - i was puzzled at the "Why then did I go down from 1200 (to 1361)" - then i read on and realised that the poster thought ratings were like golf handicaps. Broke into a smile - (i was feeling somewhat tense for reasons not related to websites) - and feeling relaxed - it was theraputic! Thanks, MickBJ!

      (the above is meant seriously! i am *not* taking a dig at anyone. Perish the thought...)


  • 7 years ago · Quote · #162

    normajeanyates

    By the way, internet-chess ratings (say fics or icc) matter in a way - it you play too casually for a long session your rating falls abnormally below your "normal" at the relevant site - so you tend not to get opponents against whom you can play a good game (until your ratings pick up again).
  • 7 years ago · Quote · #163

    stdavid

    Reb wrote: I think ratings do matter to serious chess players. I have never met one that it didnt matter to. Are you a serious chess player? I consider myself a serious chess player but the only rating that matters to me is my uscf and fide otb classic chess ratings. Online ratings dont matter to me at all and neither do blitz or rapid chess ratings.

     

    I agree with the assertion that ratings do matter to serious players. I do not agree however that OTB ratings have some superior status to correspondence or on-line ratings. Why does he think that people who play correspondence chess or online chess cannot be serious players? Not everyone has the opportunity or time to play otb....I myself have limited time even to play online, but I take each game seriously and give it as much thought as I can within the time available. My rating is not too bad but I would desperately like it to be better.


     


  • 7 years ago · Quote · #164

    Clavius

    An interesting aspect of ratings is that you can estimate about how often one player should beat another.  If they are 100 points different, for example, the stronger player should win about 64% of the time, 200 points about 76% of the time, 300 points about 85% of the time and 400 points about 91% of the time.  Gives you a lot of respect for Kasparov's record rating of 2850.  Of course, you shouldn't be thinking about this when you are playing since even against a player rated 400 points higher you still have a chance.
  • 7 years ago · Quote · #165

    timmaylivinalie

    justice_avocado wrote: 1361 is higher than 1200. this isn't golf.
    so we're not sposda get our ratings to zero!!!???
  • 7 years ago · Quote · #166

    jonloop

    fischer wrote: AlecKeen wrote:Becca wrote:Rating has its place but its not the most important thing. Sometimes you can lose a game on time and it will seriously affect your rating this has nothing to do with how well you play.

    Oh yes it does! How well you play includes how well you manage your time. Time is as much part of Chess as it is in other games. In football you could score the greatest goal in history, but if the referee blows time before it goes in it doesn't count. Similarly in Chess if you don't get your moves in within the time, you lose, and correctly so.


     I could be wrong, but I assume she's talking about blitz games. There are lots of people who are great blitz players but terrible in long games, and vice versa.


     I try to play differently in blitz games. In long games I try to play (what looks to me through my myopic chess goggles) the best move, whereas in blitz games I try to play moves that make the opponent think


  • 7 years ago · Quote · #167

    Marshal_Dillon

    erik wrote:

    everyone starts at 1200. then as you play you get a new rating. it is all based on the Glicko ratings system :) check it out - it's a fun read!

    http://math.bu.edu/people/mg/glicko/glicko.doc/glicko.html 


     The problem I have after reading this is Glicko assumes the rating of a player who has been out of the game for a while is not reliable. Let's say that I play chess for 20 years and earn a 1700 rating then stop playing for 20 years. A new prodigy comes up and after 2 years of playing has a 1700 rating but his rating is earned more recently than mine was. That would make the prodigies rating after only two years of play more valid than my rating earned after 20 years of play because I haven't played in 20 years. I could have 1000 professional games under my belt and the young prodigy only 100 so how is my rating less valid than his? I would consider the newer players rating the less reliable because he has fewer games. Time should have no effect on how many points someone gains or loses from a match. If we could bring J.R. Capablanca back from the dead would anyone say that his rating is less valid than Vladimir Kramniks?  


  • 7 years ago · Quote · #168

    jonloop

    I'd like to know what is going on with the tactics trainer rating, if anyone else is amused by how the trainer rating changes, or if it is just me

    First I went up to about 1600, then suddenly plunged to 800 in the space of about 2 days, then zoomed back up to 1700 before drifting down to less than 1400, then raced up above 2000 in about 48 hours before drifting back to about 1900

    The actual rating is less important than the fact that it seems to be moving all over the place. Is my skill in tactics really changing that much over the space of a couple of weeks (and in some cases a matter of days), or is the tactics trainer on drugs?

    Don't get me wrong, I think that the tactics trainer is one of the best features of the site, but I would prefer to see a slow and gradual increase in my rating that reflected a real improvement in my tactics, rather than a completely bonkers, helter-skelter voyage all over the place


  • 7 years ago · Quote · #169

    danielclayton534

    it doesnt matter how much your rating is, its all about playing the game of chess. win or loss you always learn from a game of chess.
  • 7 years ago · Quote · #170

    joemack

    I like the current rating system, and I probably won't bother reading the Glicko article. If I beat a higher rated player my rating increases, lose to a lower rated player and the rating decreases, what could be better. Great incentive to enjoy playing the great game.
  • 7 years ago · Quote · #171

    inferno

    i didn't have time to read the posts but i just wanted to know if it wouldn't be better if we ranked instead of rated.Laughing this way you will know that on chess.com you are ranked number 1234 (eg.) and not rated 1187 (eg.). what do you think? Undecided


  • 7 years ago · Quote · #172

    erik

    inferno wrote:

    i didn't have time to read the posts but i just wanted to know if it wouldn't be better if we ranked instead of rated. this way you will know that on chess.com you are ranked number 1234 (eg.) and not rated 1187 (eg.). what do you think?


     i think we already have taht too :)


  • 7 years ago · Quote · #173

    inferno

    i know that erik, but what i am saying is that instead of this complicated rating system (seeing that it's accuracy is being questioned) why not just use the ranking system only!!!Cool


  • 7 years ago · Quote · #174

    Loomis

    inferno, how would you determine everybody's ranking? How do you determine how to change a player's ranking when they win or lose? (don't just say it goes up if you win and down if you lose, the programmers need a precise calculation for it.)

     

    Just because a few people who don't  understand the rating system question it's accuracy, we shouldn't scrap a system that is both well founded in math and statistics and tried and true (the glicko rating system is used in other places with much success).

     

    Also, my rating today can be compared to my rating next year. My ranking today might have nothing to do with my ranking a year from now. 


  • 7 years ago · Quote · #175

    inferno

    well in that case loomis excuse me for asking questions!!! let me just say this, " a person asks a question because he/she does not understand/know about the subject", so go figure!!
  • 7 years ago · Quote · #176

    Paul

    So here is a simple question - what is the difference between ranking and rating?
  • 7 years ago · Quote · #177

    inferno

    i would say ranking is used  to show your position in relation to other players and ratings to calculate your skill level!! hope that answers your question paul. oh and for your information " I AM MERELY ASKING QUESTIONS BECAUSE I WANTED TO KNOW MORE ABOUT THE RATING SYSTEM AND HOW IT WORKS, because i saw the way ratings is caculated and it was confusing yet interesting at the same time!LaughingWink 


  • 7 years ago · Quote · #178

    Loomis

    In that case inferno, excuse me for answering your question!!!

     

    And in all sincerity, the next time you ask a question, end it with a question mark instead of three exclamation points and perhaps people will understand better that you are asking a question and not making a suggestion that borders on a demand. 


  • 7 years ago · Quote · #179

    inferno

    inferno wrote:

    i didn't have time to read the posts but i just wanted to know if it wouldn't be better if we ranked instead of rated. this way you will know that on chess.com you are ranked number 1234 (eg.) and not rated 1187 (eg.). what do you think?


    well gentlemen i sincerely apologise if it sounded that way, but I think my first post ended with a question mark!EmbarassedWink 


  • 7 years ago · Quote · #180

    Paul

    inferno wrote:

    i would say ranking is used  to show your position in relation to other players and ratings to calculate your skill level!! hope that answers your question paul. oh and for your information " I AM MERELY ASKING QUESTIONS BECAUSE I WANTED TO KNOW MORE ABOUT THE RATING SYSTEM AND HOW IT WORKS, because i saw the way ratings is caculated and it was confusing yet interesting at the same time! 


    Inferno - thanks - I have only played 9 games on line so far - and have no ranking - is it safe to assume I will get a ranking after I have played more games?



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