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Subject: Re: Polgar and Fritz **TPR** Where does the 141 come from?

Author: KarinsDad

Date: 16:00:12 05/05/99

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On May 05, 1999 at 15:47:02, James T. Walker wrote:

[snip]
>
>I hate to tell you guys but you are all wrong.  Performance ratings are
>generallly only given to unrated players.  There is no "assumption" of an
>unrated players rating.  The performance rating is  found by the formula:
>Rp=Rc +400(W-L)/N
>Rp=Performance rating
>Rc=Average rating of players opponents(2677 in the case of J. Polgar)
>W=Number of wins(4 Wins)
>L=Number of Loss (1 Loss)
>N=Number of games (8 Games)
>4-1=3x400=1200/8=150+2677=2827
>J. Polgar since she is a rated player would not be given a performance rating.
>The fact that she performed at (1-4)=-3x400=-1200/8=-150 points below her
>opponent is about all that can be said.

Look out James! I hate to tell you, but you may soon be wrong. The performance
rating calculation (for the USCF) will probably be changing this year. So, this
equation will go out the door and we will have to re-think how we view unrated
players.

Just having fun with ya.

KarinDad :)



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