Individual Calculations September 2017
 Vickery, Jim E  Total change: -10.60  Rating chartPersonal card
 104th British Championships Over 65 Llandudno ENG 2017-07-30
RcRownchangeKK*chgGame
 1949 1953 2.50 6 -0.53 20 -10.60 
  Shephard, Chris Cw 2192 ENG0.001-0.2020-4.00 
  Donaghay, Richard H 1856 ENG0.501-0.1320-2.60 
  Price, Andrew 1795 ENG0.501-0.2120-4.20 
  Hughes, Peter 1749 ENG0.501-0.2620-5.20 
  Tunstall, Mike J 2030 ENG0.5010.11202.20 
  Reuben, Stewart c2074 ENG0.5010.16203.20 

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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