Individual Calculations September 2018
 Byfield, Geoffrey  Total change: 36.40  Rating chartPersonal card
 William Roper Memorial 2018 National Senior Championship KINGSTON JAM 2018-08-04
RcRownchangeKK*chgGame
 1867 2006 8.50 10 1.82 20 36.40 
  Wilkinson, Ian 1853 JAM1.0010.30206.00 
  Diedrick, Michael 1820 JAM1.0010.26205.20 
  Douglas, Markland 1767 JAM1.0010.20204.00 
  Lindo, Terence 1654 JAM0.501-0.3920-7.80 
  Matthews, Shane f2241 JAM1.0010.792015.80 
  Wilkinson, Ian 1853 JAM1.0010.30206.00 
  Diedrick, Michael 1820 JAM1.0010.26205.20 
  Douglas, Markland 1767 JAM1.0010.20204.00 
  Lindo, Terence 1654 JAM1.0010.11202.20 
  Matthews, Shane f2241 JAM0.001-0.2120-4.20 

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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