Individual Calculations February 2015
 May, Adam J  Total change: 10.40  Rating chartPersonal card
 2015 South Wales New Year Open Bridgend WLS 2015-01-02
RcRownchangeKK*chgGame
 1884 1907 3.50 5 0.98 20 19.60 
  Sivarajasingam, Venetia 1507  * WLS1.0010.08201.60 
  Davis, Lee 1977 WLS1.0010.602012.00 
  Heaven, Peter 1972 WLS0.001-0.4120-8.20 
  Lewis, David Rhys 1933 WLS1.0010.542010.80 
  Young, Alan 2029 WLS0.5010.17203.40 
 * Rating difference of more than 400. Please read more at FIDE Handbook

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)
 
 Welsh Chess Premier League 2014/15 Rd4 Various WLS 2015-01-18
RcRownchangeKK*chgGame
 1937 1907 0.00 1 -0.46 20 -9.20 
  Fathallah, Joe 1937 WLS0.001-0.4620-9.20 

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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