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Subject: Re: Human rating differential compared to Computer vs. computer

Author: James T. Walker

Date: 07:12:39 01/30/99

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On January 29, 1999 at 22:56:44, KarinsDad wrote:

>On January 29, 1999 at 22:33:20, James T. Walker wrote:
>
>>Hello Karinsdad,
>>I think that is one of the reasons if not the main reason the USCF will not rate
>>matches of players with more that 400 points difference in their ratings.
>>Jim Walker
>
>I've never heard of that rule. Is this recent? This is weird though, because how
>did Stan Vaughn get to play Nicole Niemi and Candice Lonardo (who he played in
>her last 10 USCF rated provisional games) to get their ratings up if it was not
>in match play?
>
This is not new.  It's been in the rules since I got into chess in 1977 and
probably before that.

"4. Matches. Individual matches are rated with the following restrictions:
a) Both players involved must be rated, with the difference in ratings not to
exceed 400 points (the latest published rating prior to the match will be used
for claculating the rating difference).  Match reports not conforming to this
regulation will be returned."

>They do, however, allow players in tournaments with greater ranges. I have
>played people 600 points higher in tournaments on more than one occasion.
>
>KarinsDad

Yes , I've played masters in tournaments when I was rated 1700.  I've seen
articles in Chess life where "B" players have upset masters too.  It does
happen.
Jim Walker



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