Individual Calculations May 2010
 La Bella, Roberto  Total change: -3.30  Rating chartPersonal card
 OP II Centro Scacchi Palermo ITA 2010-04-15
RcRownchangeKK*chgGame
 1947 2092 2.50 4 -0.22 15 -3.30 
  Castelli, Giovanni J. 1796 ITA1.0010.15152.25 
  Palazzotto, Roberto 1965 ITA0.501-0.1715-2.55 
  Valguarnera, Girolamo 2121 ITA0.001-0.4615-6.90 
  Di Misa, Salvatore 1907 ITA1.0010.26153.90 

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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