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Chess rating system
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philip
Sm0g98 wrote:
philip
Who's Philip?
Nov 12, 2016
0
#2385
The paper is pretty thorough and easy to follow. But if you want to the approximate version, as applies to most situations, it is as follows:
New Rating = Old Rating + k x ( Outcome - Expected Outcome) + Bonus term. k factor is a function of rating and number of games played. For a 1000 rated kid who has played 20 rated matches, k is on order of 55 - 65 I think. The Outcome is 1, 0, or 0.50. Expected outcome a function of the difference between the ratings of the 2 players: P(win) = 1 / ( 1 + 10^(-Rating Diff / 400 ).
joeyson wrote:
joey you know Zeed Ztun ?
wow ppl
just play
ratings dont even matter
chess rating = no points to use
lol 125 pages in answer to a simple question... gotta love chess.com XD
Phantom_of_the_Opera wrote:
lol 125 pages in answer to a simple question... gotta love chess.com XD
125 replies provides a fuller answer to the OP
right kaynight?
i was just checking out the global ratings (i know, pretty pathetic too much time on my hands) and i noticed on the rapid board the top two highest rated players have no games credited to them, ie both 0/0/0. How does this happen?(
Nov 18, 2016
0
#2392
Bradyrules wrote:
i was just checking out the global ratings (i know, pretty pathetic too much time on my hands) and i noticed on the rapid board the top two highest rated players have no games credited to them, ie both 0/0/0. How does this happen?(
The site probably assigned ratings in the time control based on real OTB ratings or computed ratings in the case of the KomodoEngine account. And they haven't played games in that time control.
I was thinking about it .
Just lost 200 chess.com blitz rate nag points
I was wondering if anyone could help me with this question - what type of games are represented by things such as 30|0 or 15|5? Thank you in advance.
Nov 28, 2016
0
#2396
halcrabb3 wrote:
I was wondering if anyone could help me with this question - what type of games are represented by things such as 30|0 or 15|5? Thank you in advance.
Thank you, Mr. Stahl
hello people
Dec 5, 2016
0
#2400
chyesssssss wrote:
Why is it that when I divide my blitz ranking (roughly 150,500th place) out of the total blitz players (roughly 2.2 million), I am in the 90th percentile, but on my stats page, it says I am only in the 69th percentile.
Thanks you.
Because the stat is percentile not percentage.
https://en.wikipedia.org/wiki/Percentile
If this was 9 years ago that might not be far from the truth. There weren't that many people on chess.com back then.