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Subject: Re: SSDF and USCF ratings correlation

Author: Robert Hyatt

Date: 15:06:01 08/19/03

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On August 19, 2003 at 13:16:50, Kerry McDermott wrote:

>Back in 1986 Fidelity Excel Club participated in the US Open I think.  8
>machines did 12 rounds (or 12 machines did 8 rnds) and came out with a USCF
>rating of 2040 based on those 96 games.  That is 282 points higher than its SSDF
>rating now.  There are many other examples like this one from late 1980's.  What
>has changed to make this so innacurate?  Should one no longer consider the Excel
>Club to have a rating of 2040 USCF?
>
>Regards,
>
>Kerry


two different rating pools.  Today's USCF is one pool.  Today's SSDF is another.

Ratings between two pools are pretty well meaningless unless there is a
significant cross-population between the two pools...





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