Individual Calculations September 2009
 Donati, Roberto  Total change: -11.25  Rating chartPersonal card
 20th NATO Chess Championship Hammelburg GER 2009-06-15
RcRownchangeKK*chgGame
 2125 2149 2.00 5 -0.75 15 -11.25 
  Schenk, Andreas m2499 GER0.001-0.1115-1.65 
  Pedersen, Lars Erik 2049 NOR0.501-0.1415-2.10 
  Demjen, Attila 2046 HUN0.001-0.6415-9.60 
  Steffers, Hendrik 1977 NED1.0010.27154.05 
  Ivoskaite, Diana 2056 LTU0.501-0.1315-1.95 

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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