Individual Calculations July 2011
 Vahidi, Mohammad  Total change: -19.65  Rating chartPersonal card
 Bandar Abbas open chess tournament (Sahel Cup) Bandar Abbas IRI 2011-04-24
RcRownchangeKK*chgGame
 2075 2190 0.00 2 -1.31 15 -19.65 
  Ghaledar, Faraz 2022 IRI0.001-0.7215-10.80 
  Laabi Chian, Majid 2127 IRI0.001-0.5915-8.85 

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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