Author: Bob Durrett
Date: 19:29:46 01/15/03
Go up one level in this thread
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
I do not know whether or not that was a provisional rating.
If it was, then how would one decide the provisional rating of a competitor
before many games are played?
All the information available is the ratings of the opponents and the game
outcomes.
To see what may be happening here, consider a few hypothetical examples:
First, suppose Movei played five games and won all five. Suppose the ratings of
Movei's five opponents were 1000, 1000, 1000, 1000, and 1000. What provisional
rating would you assign to movei in that case?
Secondly, suppose Movei played five games and won all five. Suppose the ratings
of Movei's five opponents were 3000, 3000, 3000, 3000, and 3000. What
provisional rating would you assign to movei in that case?
One possibility would be to simply refuse to give Movei any provisional rating
at all, in either case. Perhaps that would be the best choice.
But if one had to assign a provisional rating in each of the above two cases,
what would you do?
Clearly, in the second case it seems very likely that Movei was stronger than
any of the opponents, each rated 3000.
Similarly, in the second case it seems very likely that Movei was stronger than
any of the opponents, each rated 1000. But it would seem unwise to assign a
provisional rating above 3000.
So, the two cases are different.
The person assigning the provisional rating must go by the ratings of the
opponents.
Now consider a third case. Suppose Movei drew the first four games against
opponents rated 1000. Then Movei WON the fifth game against an opponent rated
3000. Would it make any sense at all to assign Movei a provisional rating above
3000 in that case? I think not.
In the situation presented, Movei already had a rating. If it were an
ESTABLISHED
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.