Individual Calculations July 2011
 Williams, Justus D  Total change: 15.15  Rating chartPersonal card
 The New Yorker Open - U2400 Section New York, New York USA 2011-05-27
RcRownchangeKK*chgGame
 2211 2167 2.50 4 0.74 15 11.10 
  Bierkens, Pieter A 2155 USA1.0010.48157.20 
  Treger, Yefim 2181 USA0.001-0.4815-7.20 
  Ostrovskiy, Aleksandr f2267 USA1.0010.64159.60 
  Sanz-Arilla, Luis 2241 ESP0.5010.10151.50 

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)
 
 4th New York International New York, New York USA 2011-06-17
RcRownchangeKK*chgGame
 2278 2167 3.50 9 0.27 15 4.05 
  Lapshun, Yury m2442 USA0.001-0.1715-2.55 
  Yang, Darwin m2432 USA1.0010.821512.30 
  Uribe, Mauricio m2355 COL0.001-0.2615-3.90 
  Tuhrim, Richard J 2173 USA0.5010.01150.15 
  Colas, Joshua 2040 USA1.0010.33154.95 
  Bonin, Jay m2310 USA0.001-0.3115-4.65 
  Machin Rivera, Mark c2255 PUR0.5010.12151.80 
  Barnett, Alex 2269 USA0.5010.14152.10 
  Pressman, Leif A 2230 USA0.001-0.4115-6.15 

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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