Individual Calculations May 2015
 Bentley, Bill  Total change: -9.40  Rating chartPersonal card
 2015 Lethbridge Open Lethbridge CAN 2015-04-11
RcRownchangeKK*chgGame
 1855 1846 0.50 2 -0.47 20 -9.40 
  Tran-Ly, Tristan 1888 CAN0.001-0.4420-8.80 
  Anderson, Mark 1821 USA0.501-0.0320-0.60 

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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