Individual Calculations January 2020
 Seyed Tarrah, Sona  Total change: 19.60  Rating chartPersonal card
 Tabriz 2nd U2000 Chess ( Grand Prophet's Memorial ) Tabriz IRI 2019-12-07
RcRownchangeKK*chgGame
 1762 1597 2.00 5 0.49 40 19.60 
  Saemi, Sina 1882 IRI0.001-0.1640-6.40 
  Salehimanesh, Ayda 1447 IRI1.0010.304012.00 
  Pouresmaeil, Naser 1876 IRI1.0010.844033.60 
  Ahmadi, Ramin 1896 IRI0.001-0.1540-6.00 
  Kaveh, Hossein 1711 IRI0.001-0.3440-13.60 

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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