Individual Calculations September 2011
 Duckworth, William Mark  Total change: -22.05  Rating chartPersonal card
 51st Annual Pacific Southwest Open Los Angeles, California USA 2011-07-02
RcRownchangeKK*chgGame
 2138 2352 1.00 3 -1.21 15 -18.15 
  Liao, Simone wf1952  * USA1.0010.08151.20 
  Peters, Jack m2377 USA0.001-0.4715-7.05 
  Stein, Jeremy Aaron 2085 USA0.001-0.8215-12.30 
 * Rating difference of more than 400. Please read more at FIDE Handbook

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)
 
 1st Metropolitan Chess FIDE International Los Angeles, CA USA 2011-08-17
RcRownchangeKK*chgGame
 2238 2352 5.50 9 -0.26 15 -3.90 
  Tanaka, Christian 2098 USA1.0010.19152.85 
  Khachiyan, Melikset g2505 USA0.5010.20153.00 
  Gurevich, Dmitry g2479 USA0.001-0.3315-4.95 
  Kelley, Dereque D 2203 USA0.501-0.2015-3.00 
  Yanayt, Eugene f2236 USA0.501-0.1615-2.40 
  Kurosaki, Takashi 2131 USA1.0010.22153.30 
  Wang, Richard 2240 CAN0.501-0.1515-2.25 
  Tatum, Kofi Odell 1995 USA0.501-0.3915-5.85 
  Carreto, Giovanni c2251 MEX1.0010.36155.40 

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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