Individual Calculations September 2009
 Pfister, Peter  Total change: -24.45  Rating chartPersonal card
 Jubilee Open Master 2009 Zurich SUI 2009-08-09
 2137 2147 2.00 7 -1.63 15 -24.45 
  Strohhaeker, Raoul m2439 GER0.001-0.1515-2.25 
  De Seroux, Camille 1952 SUI0.001-0.7515-11.25 
  Rindlisbacher, Lars 2070 SUI0.001-0.6115-9.15 
  Speck, Hans 2023 SUI0.501-0.1715-2.55 
  Barnier, Alain 2071 FRA1.0010.40156.00 
  Nueesch, Gerard f2319 SUI0.001-0.2715-4.05 
  Portmann, Daniel 2086 SUI0.501-0.0815-1.20 

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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