Individual Calculations July 2012
 Sachs, Derek D  Total change: 20.40  Rating chartPersonal card
 21st Annual Chicago Open - U2300 Section Wheeling, Illinois USA 2012-05-25
RcRownchangeKK*chgGame
 2110 1960 2.50 6 0.68 30 20.40 
  Bowersock, Michael 2043 USA0.5010.11303.30 
  Bora, Safal 2097 USA1.0010.683020.40 
  Sohal, Tanraj S 2106 CAN0.001-0.3030-9.00 
  Velikanov, Alexander 2157 USA0.5010.25307.50 
  Kudryavtsev, Vadim 2142 RUS0.001-0.2630-7.80 
  Yim, Tony Sung 2112 KOR0.5010.20306.00 

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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