Individual Calculations May 2012
 Rosen, Eric S  Total change: 1.65  Rating chartPersonal card
 13th Annual Pittsburgh Open Pittsburgh, Pennsylvania USA 2012-03-23
 2275 2351 2.50 4 0.11 15 1.65 
  Malkiel, Daniel E 2216 USA0.501-0.1815-2.70 
  Gelashvili, Tamaz g2619 GEO0.001-0.1715-2.55 
  Moore, Johnson S 2051 USA1.0010.15152.25 
  Griggs, Walker K 2212 USA1.0010.31154.65 

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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