Individual Calculations January 2020
 Zaibi, Amir  Total change: 20.90  Rating chartPersonal card
 Arab championship 2019 open Mostaganem ALG 2019-11-27
RcRownchangeKK*chgGame
 2285 2369 7.50 9 2.09 10 20.90 
  Al Salman, Mohamad 1970 LBN1.0010.08100.80 
  Nassr, Ali m2244 ALG1.0010.33103.30 
  Bellahcene, Bilel g2539 ALG0.5010.22102.20 
  Elarabi, Abobker Mohamed f2326 LBA1.0010.44104.40 
  Abdulwahhab, Ahmed Abdulsattar A f2228 IRQ0.501-0.1910-1.90 
  Issa, Rafat f2384 JOR1.0010.52105.20 
  Mansour, Sameer f2261 JOR0.501-0.1510-1.50 
  Saeed, Ishaq m2426 UAE1.0010.58105.80 
  Brahami, Lamine f2185 ALG1.0010.26102.60 

Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change)
 

 

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