Individual Calculations February 2022
 Shahdadi, Mostafa  Total change: -12.40  Rating chartPersonal card
 South Khorasan Chess Men Championship 2021 Birjand IRI 2022-01-15
RcRownchangeKK*chgGame
 1520 1561 0.50 2 -0.62 20 -12.40 
  Gholami, Ali 1513 IRI0.001-0.5720-11.40 
  Jafari, Mohammad Sadegh 1526 IRI0.501-0.0520-1.00 

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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