Rapid: Individual Calculations December 2021
 Zifroni, Dov  Total change: -9.20  Rating chartPersonal card
 Israel National Cup 2021 Jerusalem ISR 2021-11-26
RcRownchangeKK*chgGame
 2191 2462 3.50 5 -0.46 20 -9.20 
  Erenberg, Shlomy 2070 ISR1.0010.08201.60 
  Polyakov, Alex 2229 ISR1.0010.21204.20 
  Kogan, Arthur g2474 ISR0.5010.02200.40 
  Gov, Guy 1970 ISR1.0010.04200.80 
  Milikow, Elie c2212 ISR0.001-0.8120-16.20 

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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