Individual Calculations September 2009
 Ballmann, Martin  Total change: -4.50  Rating chartPersonal card
 Jubilee Open Master 2009 Zurich SUI 2009-08-09
 2311 2390 5.00 9 -0.45 10 -4.50 
  Astengo, Marcello 2117 ITA1.0010.17101.70 
  Harikrishna, P. g2679 IND0.001-0.1610-1.60 
  Schleicher, Guido 2245 GER0.501-0.1910-1.90 
  Gattenloehner, Sebastian 2231 GER0.501-0.2110-2.10 
  Barthel, Ansgar 2206 GER0.501-0.2410-2.40 
  Gaehwiler, Gabriel 2247 SUI0.501-0.1910-1.90 
  Heinatz, Dr Gundula wm2232 SUI1.0010.29102.90 
  Hirneise, Jens f2283 GER1.0010.35103.50 
  Saric, Ivan g2561 CRO0.001-0.2710-2.70 

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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