Individual Calculations January 2009
 Rosenthal, Michael  Total change: 1.50  Rating chartPersonal card
 Stav Rishon Intl 2008 Rishon Le-Zion ISR 2008-09-15
RcRownchangeKK*chgGame
 2059 2203 3.50 5 0.10 15 1.50 
  Lifshits, Avraham 2016 ISR1.0010.26153.90 
  Chikman, Alan 1909 ISR0.501-0.3515-5.25 
  Heruti, Ofer 2018 ISR1.0010.26153.90 
  Segal, Naum 2210 LAT0.5010.01150.15 
  Goldfarb, Ilan 2144 ISR0.501-0.0815-1.20 

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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