Individual Calculations November 2010
 Petrachi, Gianni  Total change: -0.25  Rating chartPersonal card
 FE 12. Citta' di Trieste Trieste ITA 2010-09-04
RcRownchangeKK*chgGame
 1998 1899 3.00 8 -0.01 25 -0.25 
  Mocchi, Tullio f2248 ITA0.001-0.1125-2.75 
  Pregarac, Valter 2089 SLO0.001-0.2525-6.25 
  Ottaviani, Gianluca 1936 ITA0.5010.05251.25 
  Walta, Paivi wf1846 FIN0.001-0.5725-14.25 
  Sevenyuk, Alexey 1920 BLR0.001-0.4725-11.75 
  De Dreu, Dies 2019 NED1.0010.662516.50 
  Tonel, Giulia 1977 ITA0.5010.11252.75 
  Gregori, Giuliano 1946 ITA1.0010.572514.25 

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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