Individual Calculations September 2011
 Cobb, James  Total change: 2.50  Rating chartPersonal card
 8th South Wales International Open Penarth WLS 2011-07-09
RcRownchangeKK*chgGame
 2215 2408 6.00 8 0.25 10 2.50 
  Brown, Thomas 2080 WLS0.501-0.3710-3.70 
  Thomas, James 2008  * WLS1.0010.08100.80 
  Byron, Alan M 2223 ENG1.0010.26102.60 
  Radulski, Julian g2556 BUL0.5010.20102.00 
  Rayner, Francis 2140 WLS1.0010.17101.70 
  Wells, Peter K g2489 ENG0.001-0.3910-3.90 
  Jaunooby, Ali R 2130 ENG1.0010.17101.70 
  Pleasants, Allan J 2092 WLS1.0010.13101.30 
 * 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)
 

 

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