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Subject: Re: about rating system in Israel for humans(slightly off topic)

Author: Bernhard Bauer

Date: 02:36:01 01/05/04

Go up one level in this thread


On January 04, 2004 at 04:53:47, Uri Blass wrote:

>I hesitated if to post it here or in the second forum but I think that pgn
>analyzing programs have the potential to help for better rating system
>
>In Israel the initial rating is today is 1350 and the minimal rating is
>1300(there are players with rating 0 if they have experience in tournaments in
>other countries but without international rating but this rating has no meaning
>and they later get rating based on their performance)
>
>people suggest to reduce these numbers.
>
>The idea is now to have initial rating of 1200 for new players who are childs
>who are younger than 10 and initial rating of 0 that has meaning of not having
>rating for older players(They learned that the idea to give the same initial
>rating for all players who never compete is bad only after experience with some
>adults at level of 1800 or higher that simply trained a lot against computers
>before they started to compete and got high level)
>
>
>I do not think that the idea to give initial rating of 1200 to childs under 10
>is good but the problem is that there are tournaments when all players play
>their first tournament and we need to give these players rating(the situation
>today that new players who never played in tournament get 1350 is even worse).
>
>I think that for the purpose of tournaments when all players are new players it
>may be logical to have some program that analyze pgn and give rating for weak
>players.
>

When only some players are unrated you could still compute a rating for the
unrated players. This is done in the german rating system (DWZ). When nobody has
a rating I doubt that you could get proper pgn files from their game for further
analysis. Such players usually cannot write down their moves in a proper way.
Giving an initial rating to an unrated player is nonsens. If an unrated player
plays a tournament he will get a performance which could be used for an initial
rating. Of course he has to make more than 0% and less than 100%.
A rating system should be conservative. That means, if the rating pool dosn't
change the sum of the ratings is constant.

Kind regards
Bernhard

>I have ideas of recalculating the rating of old players and reduce the rating of
>weak players(it is not logical to give new players 1200 when players with the
>minimal rating of today (1300) do not go down) but for some reason people object
>it and said that this is impudence to reduce rating for existing players.
>
>I see rating as relative and I do not understand it.
>I suggested even to add 10000 rating points to everyone if it is going to make
>people feel better(the only reason that I do not like it is that I want to have
>Israeli rating similiar to Fide rating in the relevant level but it is not very
>important).
>
>The idea to reduce the minimal rating and the initial rating of new players is
>only in discussion and there is still no decision.
>Unfortunately I am not in the committe who need to decide.
>
>There are more absurds in the rating system.
>
>For example a player who play 60 games against players that are 100 elo stronger
>than him in 3 months and get 50% is going to get more than 100 elo improvement
>because the games are calculated based on the old rating and he can get 3 elo
>points for every game(the number of points that he get is dependent on his
>rating and the time control of the game and the coefficient for players who
>played less than 30 games is even higher but even I can get 3 elo for every draw
>with a player that is 100 elo above me at 2 hours per game and if I play enough
>games at 2 hour per game in 3 months I can get above my performance when my
>performance is higher than my rating).
>
>For some reason people were against my ideas to change it.
>
>If you know hebrew then you can read about this subject in
>
>http://www.chess.org.il/forum/topic.asp?TOPIC_ID=3520
>
>Uri



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