Individual Calculations April 2018
 Duda, Ryszard  Total change: -3.00  Rating chartPersonal card
 Druzynowe Mistrzostwa Slaska Seniorow 2018 - I Liga Round 5-8 Silesia POL 2018-03-24
RcRownchangeKK*chgGame
 1892 1739 0.50 2 -0.15 20 -3.00 
  Radecki, Adam 1731 POL0.001-0.5120-10.20 
  Borys, Jacek 2053 POL0.5010.36207.20 

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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