Individual Calculations February 2013
 Rosen, Eric S  Total change: -9.60  Rating chartPersonal card
 2012 Pan American Intercollegiate Chess Championship Princeton, New Jersey USA 2012-12-27
 2254 2288 1.50 4 -0.64 15 -9.60 
  Robinson, Darrian 1993 USA0.001-0.8515-12.75 
  Riccardi, Thomas H 2116 USA0.501-0.2315-3.45 
  Flores, Mauricio g2488 CHI0.5010.26153.90 
  Shen, Victor C m2419 USA0.5010.18152.70 

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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