Individual Calculations May 2010
 Al-Ghasra, Ali  Total change: -14.55  Rating chartPersonal card
 BAHRAIN CLUB SECOND CHESS CHAMPIONSHIP 2009 Manama BRN 2009-10-04
RcRownchangeKK*chgGame
 2136 2123 0.00 2 -0.97 15 -14.55 
  Ayyad, Maher f2140 BRN0.001-0.4815-7.20 
  Ayyad, Hussain f2132 BRN0.001-0.4915-7.35 

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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