Author: Andrew Dados
Date: 11:34:12 05/22/99
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On May 22, 1999 at 12:53:55, Stefan Meyer-Kahlen wrote:
>Just two questions concerning ELO performance and probabilities:
>
>* How do I calculate my ELO performance if I get x percent out of y games
>against an opponent with z ELO points?
>
>* In which range is my own ELO rating with 95% probability after that match?
>
>I guess those are FAQs with 95% probability :-)
>
>Thanks
> Stefan
Quick (and dirty) formula for perf. rating against player rated X :
p.r= X+400*(W-L)/T;
where W,L,T being wins,loses and total games respectively...
Andrew
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