Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: ELO VS. USCF RATINGS

Author: Robert Hyatt

Date: 19:34:59 05/08/98

Go up one level in this thread


On May 08, 1998 at 13:41:51, Fernando Villegas wrote:

>On May 08, 1998 at 10:28:53, Terry Presgrove wrote:
>
>> Would someone please explain the  aproximate rating
>> differential between ELO and USCF ?
>
>Hi:
>It seems the differential does nor run along an straight line, but on a
>curve. At the high end of it both lines -or curves-tend to aproximate,
>so some learned people say. In the middle class rating section, it seem
>the difference is like 100 points, that is, USCF rating is inflated in
>100 points compared with the equeivalent in strnght of ELo rating list.
>A 2400 player would be no more than a 2300 in Elo, but who knows...

Ken Sloan posted a detailed analysis of this about a year ago in
r.c.c.c,
where he compared several hundred players with both FIDE and USCF
ratings.

For a linear fit, USCF=FIDE+50.

But it is not a linear equation, unfortunately.  But that is a close
approximation, particularly at 2300 and up...



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.