Individual Calculations May 2011
 Boehm, Stefan, Dr.  Total change: 7.65  Rating chartPersonal card
 9. Bayer Open Leverkusen GER 2011-01-10
RcRownchangeKK*chgGame
 2080 2082 2.00 3 0.51 15 7.65 
  Wolfradt, Dirk 2182 GER0.5010.14152.10 
  Sockel, Karl-Heinz 2136 GER0.5010.08151.20 
  Ziabari, Morteza 1923 GER1.0010.29154.35 

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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