Individual Calculations July 2011
 Pratley, Ian  Total change: -14.75  Rating chartPersonal card
 Coulsdon Winter CC - Division 2a 2011 Coulsdon ENG 2010-09-06
RcRownchangeKK*chgGame
 1584 1507 1.00 4 -0.59 25 -14.75 
  Selby, Keith 1600 ENG0.5010.13253.25 
  Constable, Christine F 1512 ENG0.001-0.4925-12.25 
  Rhodes, Peter 1705 ENG0.001-0.2425-6.00 
  Houghton, Mark A 1517 ENG0.5010.01250.25 

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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