Individual Calculations January 2009
 Guo, Alex  Total change: -20.50  Rating chartPersonal card
 Washington Class Championships - Master Section Redmond, Washington USA 2008-11-28
RcRownchangeKK*chgGame
 2210 2142 0.00 2 -0.82 25 -20.50 
  Perez, Ignacio f2306 USA0.001-0.2825-7.00 
  Rupel, David 2113 USA0.001-0.5425-13.50 

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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