Individual Calculations April 2009
 Rotstein, Jefim  Total change: 0.60  Rating chartPersonal card
 2.Pfalz Open Neustadt a.d. Weinstrasse GER 2009-02-15
 2285 2372 5.50 9 0.06 10 0.60 
  Thomassen, Thomas 2022 NOR1.0010.11101.10 
  Mareck, Sascha 2176 GER1.0010.25102.50 
  Iotov, Valentin g2556 BUL0.001-0.2610-2.60 
  Posedaru, Bogdan 2188 ROU1.0010.26102.60 
  Greenfeld, Alon g2548 ISR0.001-0.2710-2.70 
  Lacrosse, Marc f2192 BEL1.0010.26102.60 
  Lau, Udo 2160 GER0.501-0.2710-2.70 
  Weisenburger, Horst 2149 GER1.0010.22102.20 
  Jankovic, Alojzije g2571 CRO0.001-0.2410-2.40 

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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