Individual Calculations July 2009
 Spychalska, Bozena  Total change: -10.00  Rating chartPersonal card
 17th Lasker's Memorial - open B Barlinek POL 2009-05-16
RcRownchangeKK*chgGame
 1817 1632 0.50 3 -0.40 25 -10.00 
  Ziabari, Morteza 1947 GER0.001-0.1425-3.50 
  Szneider, Kazimierz 1982 POL0.001-0.1125-2.75 
  Samson, Stefan 1522 POL0.501-0.1525-3.75 

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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