Individual Calculations May 2012
 Pena, Pablo  Total change: -3.00  Rating chartPersonal card
 19th Annual Western Class Championships Agoura Hills, California USA 2012-03-09
 2109 2146 1.50 3 -0.10 30 -3.00 
  Akopyan, Harutyun f2243 USA0.5010.13303.90 
  Ashe, Brandon 2215 USA0.001-0.4030-12.00 
  Liao, Simone wf1870 USA1.0010.17305.10 

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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