Individual Calculations July 2012
 Petzold, Klaus  Total change: -9.60  Rating chartPersonal card
 Oberliga NRW Bochum GER 2011-09-18
RcRownchangeKK*chgGame
 2178 2202 1.50 4 -0.64 15 -9.60 
  Krieg, Nikolaj f2351 GER0.5010.20153.00 
  Topp, Michael 2080 GER0.001-0.6715-10.05 
  Strozewski, Frank 2046 GER1.0010.29154.35 
  Heisel, Guido 2234 GER0.001-0.4615-6.90 

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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