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Subject: Re: SSDF rating adjustment

Author: Mike Byrne

Date: 17:05:54 08/19/03

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On August 19, 2003 at 12:00:35, Kerry McDermott wrote:

>Thanx Mike.  That was very helpful information.  I am going to post my question
>differently to see what others may think.  How did you find out about USCF
>ratings being adjusted down by 150?
>
>Regards,
>
>Kerry


Until last October , I had not played USCF for about 5 years.  Although not
playing USCF, still keeping my hand in chess with computer and the what not.
When I came back, I felt like I was better player than 5 years ago.  I had 3
draws against players that were juts baove my rating.  So much for feeling like
I was better - I was wrong or so I thought.  Fast forward to May of this year, I
played in my tournament since coming back.  I noticed one of old friends rated
near 1600.  Back in 1995, he was rated over 1800.  Hmmm, the aging process is
not going for my friend or so I thought.

http://www.64.com/uscf/ratings/10159130

During the tournment I  kept an eye on his game.  His game did not seem any
weaker.   To make a  long story short, one of the other locals started telling
me how the USCF systematically too everybody's rating down because of rating
inflation.  Of course that only impacted those who played.  They set floor that
were genrally 200+ points below their high.  In Roy's case above his floor is
1600.  One can see he touched the floor several times.  The last year, the USCF
decided they over corrected and are now psuhing ratings back up again.  You can
see that Roy's rating is going back up.

Ken Sloan probably understands ratings and ratings systems as well as anyone -
this short piece is great:

http://groups.google.com/groups?q=g:thl3870583014d&dq=&hl=en&lr=&ie=UTF-8&oe=UTF-8&selm=t766h9mrlv.fsf_-_%40uab.edu

This has been discussed at length at r.g.c.p - this thread has of  the
participants that were actually involved in the USCF rating decisions - there is
a lot of mud slinging.

http://groups.google.com/groups?q=g:thl286037684d&dq=&hl=en&lr=&ie=UTF-8&oe=UTF-8&selm=8t99ed%24bom%241%40nnrp1.deja.com


Marty Glickman and Ken Sloan are, IMO, two people who really understand how the
rating system works.  Generally speaking, USCF has never had totally neutral
rating system - there has always been inflation or deflation parameters at work.
 Search usenet where Ken Sloan or Marty Glickman are the posters to gain the
most intelligent understanding of ratings.



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