Individual Calculations January 2017
 Bragg, David R.  Total change: 10.20  Rating chartPersonal card
 2016 Washington Class Championships - Master Lynwood, Washington USA 2016-11-25
RcRownchangeKK*chgGame
 1900 2098 2.00 2 0.51 20 10.20 
  Gatica, Jose M 1994 USA1.0010.36207.20 
  Zhang, Brendan 1806 USA1.0010.15203.00 

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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