Individual Calculations May 2017
 Bertollini, Ferruccio  Total change: -16.40  Rating chartPersonal card
 OP 15 Infrasettimanale ARS -B Roma ITA 2017-03-09
RcRownchangeKK*chgGame
 1402 1451 2.00 5 -0.82 20 -16.40 
  Piperno, Renato 1355 ITA0.501-0.1320-2.60 
  Salvi, Nino 1355 ITA1.0010.37207.40 
  Nazzarri, Errico 1390 ITA0.001-0.5820-11.60 
  Cordio, Carlo Maria 1298 ITA0.501-0.2020-4.00 
  Vanzan, Alessandro 1614 ITA0.001-0.2820-5.60 

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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