Individual Calculations November 2009
 Boulahfa, Hicham  Total change: 24.60  Rating chartPersonal card
 Open Brasschaat Brasschaat BEL 2009-08-15
RcRownchangeKK*chgGame
 2090 2022 5.00 8 1.64 15 24.60 
  Van Goethem, Jozef 1813 BEL1.0010.23153.45 
  Cools, Gorik f2265 BEL1.0010.801512.00 
  Both, Erik 2234 NED0.001-0.2315-3.45 
  Kooyman, Marcel 1885 BEL0.501-0.1815-2.70 
  Roos, David 1789 BEL1.0010.21153.15 
  Kool, Gerard 2134 NED1.0010.65159.75 
  Hetey, Lazlo m2352 GER0.001-0.1215-1.80 
  Penson, Thierry 2245 BEL0.5010.28154.20 

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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