Individual Calculations May 2019
 Coffman, Charles  Total change: -23.60  Rating chartPersonal card
 56th Cincinnati Open Blue Ash, Ohio USA 2019-03-29
RcRownchangeKK*chgGame
 2060 1809 0.00 3 -0.59 40 -23.60 
  Cao, Elton 2123 USA0.001-0.1440-5.60 
  Mills, James 2023 USA0.001-0.2340-9.20 
  Wilson, Russell 2033 USA0.001-0.2240-8.80 

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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