Individual Calculations January 2013
 Ben Porat, Tal  Total change: 12.60  Rating chartPersonal card
 Chaim Kandelshine Memorial 2012 Herzlia ISR 2012-09-20
RcRownchangeKK*chgGame
 1891 1811 4.00 8 0.84 15 12.60 
  Monteriano, Eran 1947 ISR0.001-0.3215-4.80 
  Ben Porat, Zeev 2008 ISR0.5010.25153.75 
  Weisbuch, Gabriel 1898 ISR0.5010.12151.80 
  Hauftman, Itay 1928 ISR0.5010.16152.40 
  Pilosof, Haim 1956 ISR1.0010.691510.35 
  Lotsov Har-Zahav, Avraham 1937 ISR0.001-0.3315-4.95 
  Gradenwitz, Oded 1814 ISR0.5010.00150.00 
  Levy, Avner 1637 ISR1.0010.27154.05 

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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