Individual Calculations January 2012
 Trimble, Selden  Total change: -6.90  Rating chartPersonal card
 Missouri Open Columbia, Missouri USA 2011-10-29
RcRownchangeKK*chgGame
 2020 2108 1.00 2 -0.23 30 -6.90 
  Luther, Ronald G 2114 USA0.001-0.4930-14.70 
  Vaughn, Rodney 1925 USA1.0010.26307.80 

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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