Individual Calculations February 2013
 Peters, Jack  Total change: 1.10  Rating chartPersonal card
 2013 Century West Open Los Angeles, California USA 2013-01-11
 2188 2350 3.50 5 0.11 10 1.10 
  Hilby, Craig 1969 USA1.0010.09100.90 
  Amerkeshev, Madiyar 2191 KAZ1.0010.29102.90 
  Khachiyan, Melikset g2501 USA0.5010.20102.00 
  Abrahamyan, Tatev wg2304 USA0.001-0.5610-5.60 
  Liao, Simone wf1974 USA1.0010.09100.90 

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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