Individual Calculations April 2009
 Lau, Udo  Total change: 13.20  Rating chartPersonal card
 2.Pfalz Open Neustadt a.d. Weinstrasse GER 2009-02-15
 2291 2160 3.50 8 0.88 15 13.20 
  Postojev, Alexander f2368 GER0.001-0.2315-3.45 
  Lechnauer, Uwe 1828 GER1.0010.12151.80 
  Khotenashvili, Bela wg2350 GEO1.0010.751511.25 
  Skembris, Spyridon g2413 GRE0.5010.31154.65 
  Donchenko, Anatoly m2374 GER0.5010.27154.05 
  Rotstein, Jefim f2372 GER0.5010.27154.05 
  Ringoir, Tanguy f2366 BEL0.001-0.2415-3.60 
  Boehle, Lars 2257 GER0.001-0.3715-5.55 

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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