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Subject: Re: Elo Rating System Funadamentally Flawed?

Author: O. Veli

Date: 00:11:31 01/07/00

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On January 05, 2000 at 06:10:07, blass uri wrote:

>3)The rating is also not perfect in predicting the playing strength of humans.
>Suppose an 1600 player based on previous topurnaments train some years against
>computers without playing in tournaments and after many years of training go
>back to tournaments and gets performance of 2600 in 9 games(including draws and
>wins against GM's).
>
>It is logical to assume that he deserves more than 2200 but
>the rating  system is not going to give this player even 2000.

  The rating system rates the last 80-100 games that you play. If 1600 was based
on 9 games, then the above player would get 2100. If 1600 was based on 80 games,
it would be much lower than 2100, and that is logical. S/he has to continue that
performance for some time to show the real strength. If after the training, the
player really becomes a 2600 player, then it would take a couple of tournaments
(8-9) to show the real rating. On the other hand this performance could be a
fluke, and the rating system considers this.



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