Individual Calculations October 2015
 Sciacca, Patrick  Total change: -15.60  Rating chartPersonal card
 75th New England Open Boxborough, Massachusetts USA 2015-09-05
 2195 2100 0.00 2 -0.78 20 -15.60 
  Winer, Steven f2355 USA0.001-0.1920-3.80 
  Han, Joseph 2034 USA0.001-0.5920-11.80 

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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