Individual Calculations April 2009
 Wahl, Gerhard  Total change: -20.25  Rating chartPersonal card
 2.Pfalz Open Neustadt a.d. Weinstrasse GER 2009-02-15
 2262 2072 0.50 5 -0.81 25 -20.25 
  Paehtz, Elisabeth mwg2422 GER0.001-0.1125-2.75 
  Szenetra, Werner 2245 GER0.001-0.2725-6.75 
  Jansen, Andreas 2231 GER0.5010.21255.25 
  Baum, Bernd, Dr. f2222 GER0.001-0.3025-7.50 
  Wiens, Helmut 2190 GER0.001-0.3425-8.50 

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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