Individual Calculations September 2009
 Katzer, Michael  Total change: -3.50  Rating chartPersonal card
 3.Frankenhaeuser Schach-Open Bad Frankenhausen GER 2009-07-04
RcRownchangeKK*chgGame
 1989 1918 1.50 4 -0.14 25 -3.50 
  Haase, Reinhard 2138 GER0.001-0.2225-5.50 
  Costello, Colin 2038 ENG0.001-0.3425-8.50 
  Brahn, Helmut 1777 GER1.0010.31257.75 
  Waltenberger, Udo 2001 GER0.5010.11252.75 

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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