Individual Calculations April 2009
 Berry, Jim  Total change: -7.05  Rating chartPersonal card
 2009 Stillwater Winter FIDE Open Stillwater, Oklahoma USA 2009-02-14
RcRownchangeKK*chgGame
 2072 2054 0.00 1 -0.47 15 -7.05 
  Roper, Fred 2072 USA0.001-0.4715-7.05 

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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