Individual Calculations April 2009
 Viebahn, Dirk  Total change: 0.00  Rating chartPersonal card
 2.Pfalz Open Neustadt a.d. Weinstrasse GER 2009-02-15
 2236 2187 3.00 7 0.00 15 0.00 
  Dausch, Rene f2401 GER0.001-0.2315-3.45 
  Ehlers, Michael 1931 GER1.0010.19152.85 
  Postojev, Alexander f2368 GER1.0010.741511.10 
  Klenburg, Mikhail m2426 UKR0.001-0.2015-3.00 
  Trabert, Bettina wg2306 GER0.001-0.3415-5.10 
  Meier, Peter 1899 GER1.0010.16152.40 
  Jacobsen, Bo 2323 DEN0.001-0.3215-4.80 

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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