Individual Calculations July 2017
 Zolfi Zinab, Sina  Total change: -27.60  Rating chartPersonal card
 Tehran Standard Under12 Cup 10 Ramezan 1396 Tehran IRI 2017-06-05
RcRownchangeKK*chgGame
 1048 1231 3.00 5 -0.69 40 -27.60 
  Khosronezhad, Abtin 1018 IRI0.001-0.7740-30.80 
  Heydari, Tarlan 1033 IRI1.0010.24409.60 
  Alavi Tabatabaei, Seyed Omid 1087 IRI1.0010.314012.40 
  Najmi Nia, Aynaz 1043 IRI1.0010.264010.40 
  Ardestani, Aida 1057 IRI0.001-0.7340-29.20 

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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