Individual Calculations January 2011
 Donaldson, John  Total change: -0.70  Rating chartPersonal card
 2010 California Class Championship Burlingame, California USA 2010-11-26
RcRownchangeKK*chgGame
 2244 2394 2.00 3 -0.07 10 -0.70 
  Sandberg, Evan M 2164 USA0.501-0.2910-2.90 
  De Guzman, Ricardo m2387 PHI0.501-0.0110-0.10 
  Applebaum, Andy F 2180 USA1.0010.23102.30 

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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