Individual Calculations May 2017
 Surtees, Mike J  Total change: -2.20  Rating chartPersonal card
 2017 Bolton Easter Congress Open Bolton ENG 2017-04-14
RcRownchangeKK*chgGame
 1970 2086 2.50 4 -0.11 20 -2.20 
  Rita, Joao 1917 ENG0.501-0.2220-4.40 
  Tebelev, Michael 1867 ENG1.0010.22204.40 
  Mason, Donald J 2147 ENG0.001-0.4220-8.40 
  Trueman, Glenn 1948 ENG1.0010.31206.20 

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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