Individual Calculations September 2018
 Khatibi, Amir Reza  Total change: 4.40  Rating chartPersonal card
 Iran Boys Student Middle school Chess Championship 1397 Zanjan IRI 2018-08-07
RcRownchangeKK*chgGame
 1779 1885 4.50 7 0.11 40 4.40 
  Nikzad, Nami 1933 IRI1.0010.574022.80 
  Rostami, Hossein 1662 IRI0.501-0.2840-11.20 
  Azadi, Amirmohammad 2099 IRI0.001-0.2340-9.20 
  Mohammadi, Mohamad Amin 1535 IRI1.0010.11404.40 
  Yousefian, Ali 1655 IRI0.501-0.2940-11.60 
  Aghamohamadi, Mohamad Arshia 1764 IRI1.0010.344013.60 
  Davoodabadi Farahani, Mohamad 1806 IRI0.501-0.1140-4.40 

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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