Author: Mike Byrne
Date: 23:16:52 08/18/03
Go up one level in this thread
On August 19, 2003 at 02:13:58, Mike Byrne wrote: >On August 18, 2003 at 16:36:26, Kerry McDermott wrote: > >>On August 18, 2003 at 16:08:38, Terry McCracken wrote: >> >>>On August 18, 2003 at 14:56:54, Kerry McDermott wrote: >>> >>>>Why did SSDF adjust their ratings down by 100 pts. a few years ago? How do they >>>>correlate to USCF ratings now? Were the ratings inflated to begin with? Does >>>>that mean that my old Fidelity Excellence is now rated around 1850 USCF as >>>>opposed to 1950 as it was before? (It actually seems lower than 1850 now >>>>anyway.) >>>> >>>>Regards, >>>> >>>>Kerry >>> >>>Check the list, the Excellence is well below 1850 on their lists. >>> >>>The Mach III Master is only 1893 on thier lists and it's much stronger than >>>the excellence. >>> >>>If you want an USCF rating, add 200 pts., if it's below 2000 ELO. >>> >>>Terry >> >> >>Terry, >> >>The rule of thumb for CCR back in late 80's and early 90's was to add 200 pts. >>to SSDF to get USCF. If SSDF has reduced their list down by 100 pts. (as they >>did in year 2000 sometime) then should we not add 300 pts. to continue to be on >>par with USCF? Or is the add 200 pts. still a valid rule of thumb? If so, why >>the reduction by 100 rating points by SSDF? What changed? Did SSDF decide from >>experience that the ratings were inflated by about 100 pts. as compared to ELO >>or Swedish ratings for human chess players? >> >>Kerry >> >>p.s. Before year 2000, the SSDF rating for Excellence was 1757 and after year >>2000 it is SSDF rated 1657. > >There has been a lot of tinkering with ratings over the last 15 years. USCF >systematicaly lower most of the well established players OTB players (who were >no longer improving but still had not hit their decline period that comes with >age) ratings by about about 150 points. > >Personally, I think SSDF on the low end computers is about aligned with USCF. >On the high end (2800) , they are too high. The problem of course is that they >play nobody but computers - thus we see the "Bloodgood" effect. Bloodgood was >a master level player who went to prison for murder. While in prision, playing >nobody but other prisoners, he became the second highest rated player in the US. > >Search google for "Bloodgood chess prision" to read all about it. the search works better if you spell "prison" correctly ;>)
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.