Individual Calculations September 2011
 Katz, Alexander R  Total change: -4.80  Rating chartPersonal card
 2011 North American Youth Championship - U16 Open Tarrytown, New York USA 2011-06-26
RcRownchangeKK*chgGame
 2077 2158 1.50 3 -0.32 15 -4.80 
  Chiang, Michael 2092 USA0.501-0.0915-1.35 
  Sen, Samir 2133 USA0.501-0.0315-0.45 
  Li, Brian S 2006 USA0.501-0.2015-3.00 

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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