Individual Calculations July 2009
 Dvoirys, Semen I.  Total change: -12.50  Rating chartPersonal card
 Israel National League 2009 Various ISR 2009-01-07
RcRownchangeKK*chgGame
 2380 2547 3.00 6 -1.25 10 -12.50 
  Kundin, Alexander m2368 ISR1.0010.27102.70 
  Mittelman, Gur m2418 ISR1.0010.33103.30 
  Neimer, Vitaly 2336 ISR0.501-0.2710-2.70 
  Hadany, Gilad 2197 ISR0.001-0.8910-8.90 
  Gruenfeld, Yehuda g2498 ISR0.501-0.0710-0.70 
  Finkel, Alexander g2462 ISR0.001-0.6210-6.20 

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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