Individual Calculations January 2009
 Jamison, Courtney  Total change: -6.15  Rating chartPersonal card
 TexOhma FIDE Open Richardson, Texas USA 2008-09-20
RcRownchangeKK*chgGame
 1789 1969 1.00 2 -0.41 15 -6.15 
  Chiang, Jonathan 1619 USA1.0010.11151.65 
  Phillips, David W 1958 USA0.001-0.5215-7.80 

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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