Individual Calculations October 2019
 Petritaj, Ferdinando  Total change: -36.20  Rating chartPersonal card
 FE 61 Imperia - A Imperia ITA 2019-09-01
RcRownchangeKK*chgGame
 1999 2213 0.50 3 -1.81 20 -36.20 
  Rindone, Andrea 1958 ITA0.501-0.3120-6.20 
  Pavesi, Brando 1994 ITA0.001-0.7820-15.60 
  Mira, Helene wm2046 AUT0.001-0.7220-14.40 

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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