Individual Calculations July 2015
 Jacobson, Aaron  Total change: 23.20  Rating chartPersonal card
 MCC May Slow Thursdays New York, New York USA 2015-04-23
RcRownchangeKK*chgGame
 1949 2127 3.50 4 0.58 40 23.20 
  Gerstl, Mark E 1965 USA0.501-0.2140-8.40 
  Frumkin, Edward A 1895 USA1.0010.21408.40 
  Uminer, Moshe 1932 USA1.0010.254010.00 
  Waxman, Marian 2005 USA1.0010.334013.20 

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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