Individual Calculations July 2009
 Mertens, David  Total change: 3.45  Rating chartPersonal card
 Luxembourg Team Championship 08/09 various LUX 2008-09-28
RcRownchangeKK*chgGame
 2032 1905 3.00 8 0.26 15 3.90 
  Ackermann, Robert 2072 LUX0.001-0.2815-4.20 
  Fattebene, Pierre 1896 LUX0.501-0.0115-0.15 
  Stull, Norbert 2143 LUX1.0010.801512.00 
  Prizker, Boris 2226 GER0.001-0.1315-1.95 
  Boyarchenko, Marie 1895 LUX0.501-0.0115-0.15 
  Ocantos, Manuel 2135 ARG0.5010.29154.35 
  Schlueter, Yves 2087 LUX0.001-0.2615-3.90 
  Ludewig, Robert 1801 LUX0.501-0.1415-2.10 

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)
 
 Luxembourg Ind. Championship 2009 Cat. B Differdange LUX 2009-04-11
RcRownchangeKK*chgGame
 1895 1905 1.00 2 -0.03 15 -0.45 
  Ludewig, Robert 1801 LUX0.501-0.1415-2.10 
  Jeitz, Olivier 1988 LUX0.5010.11151.65 

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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