Author: Miguel A. Ballicora
Date: 12:56:04 01/14/03
Go up one level in this thread
On January 14, 2003 at 14:53:39, Robert Hyatt wrote:
>On January 14, 2003 at 12:35:02, Miguel A. Ballicora wrote:
>
>>On January 14, 2003 at 10:55:38, Andrew Williams wrote:
>>
>>>On January 14, 2003 at 10:43:20, Uri Blass wrote:
>>>
>>>>
>>>>{Game 494 (MoveiXX vs. ACCIDENTE) ACCIDENTE resigns} 1-0
>>>>Blitz rating adjustment: 2635 --> 2602
>>>>
>>>>Movei won a game and lost rating.
>>>>
>>>>Uri
>>>
>>>It seems a bit strange when moveixx has played a total of *thirteen* games to
>>>declare that the rating system is "meaningless". What you have observed only
>>>occurs in the first few games. I've forgotten now how many games it requires
>>>before it settles down.
>>
>>Uri is poiting out a flaw.
>>The point that happen when one is provisional does not make it less serious.
>>After 20 games you could end up with a very wrong rating, suppose that you
>>played all 1000 -1500 elo players and won all of them. Later, you will lots of
>>points from the rating pool causing deflation. Overall, I think that introduces
>>a lot of noise. However, considering all the mess regarding these ratings, this
>>point is not one of the worst.
>>
>>Miguel
>
>This is _not_ a "flaw".
It is not a flaw, it is a major screw up considering how uneven is the
population of players in ICC.
It is based on an approximation. Every approximation works between certain
boundaries.
>For the first 20 games, you use a "provisional rating formula" and you can lose
>points by winning if you play a much lower-rated player. USCF does this.
>_everybody_ does it as you have to get an initial rating from somewhere.
USCF does that, that one of the reason why initial ratings in many cases are
horrible and there were many cases of cheating because of this. For instance,
kids that play only against 2000 rated people and their initial rating is 1600.
That is one of the reasons why when I started to play in US, my initial rating
was way below the one that I should have had (personally I do not give a damn)
because I played tournaments in the area against nobody. That is also the reason
why Anatoly Karpov was rated (maybe still is) 2500 in USA. Ridiculous.
Miguel
This page took 0.01 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.