Individual Calculations March 2012
 Richards, Deborah  Total change: -18.15  Rating chartPersonal card
 John Powell Memorial Open 2012 Kingston JAM 2012-01-21
RcRownchangeKK*chgGame
 1826 2007 1.00 3 -1.21 15 -18.15 
  Henry, Mark 1835 JAM0.001-0.7315-10.95 
  Smith, Melisha 1802 JAM1.0010.24153.60 
  Smith, Shreyas 1841 JAM0.001-0.7215-10.80 

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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