Individual Calculations February 2013
 Norrito, Salvatore  Total change: -8.25  Rating chartPersonal card
 OP 1 Palermo Scacchi Palermo ITA 2012-12-13
RcRownchangeKK*chgGame
 1823 1653 0.00 2 -0.55 15 -8.25 
  Natoli, Domenico 1829 ITA0.001-0.2715-4.05 
  Mondello, Simone 1817 ITA0.001-0.2815-4.20 

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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