Individual Calculations March 2023
 Bacak, Petr  Total change: 11.40  Rating chartPersonal card
 SSZK Krajsky prebor 2022-2023 r8-9 various CZE 2023-02-12
RcRownchangeKK*chgGame
 1991 1964 1.50 2 0.57 20 11.40 
  Vavruska, Antonin 1912 CZE1.0010.43208.60 
  Bacak, Martin 2069 CZE0.5010.14202.80 

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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