Individual Calculations September 2009
 Vitebsky, Georgy  Total change: -17.10  Rating chartPersonal card
 ISR 2nd League North 2009 Various ISR 2009-01-08
RcRownchangeKK*chgGame
 2258 2231 3.50 10 -1.14 15 -17.10 
  Lev, Ronen g2414 ISR0.001-0.2615-3.90 
  Aharon, Ofir 2142 ISR1.0010.38155.70 
  Amit, Yaron 2182 ISR0.501-0.0715-1.05 
  Berman, Mark 2180 ISR1.0010.43156.45 
  Fridkin, Juri 2222 RUS0.001-0.5115-7.65 
  Blodstein, B. 2186 ISR0.001-0.5615-8.40 
  Kalka, Arkadius Georg f2397 GER0.5010.22153.30 
  Peretz, Malkiel f2256 ISR0.001-0.4715-7.05 
  Weisbuch, Udi 2302 ISR0.001-0.4015-6.00 
  Lurie, Michael 2303 ISR0.5010.10151.50 

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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