Individual Calculations September 2017
 De Coverly, Roger D  Total change: -37.20  Rating chartPersonal card
 104th British Championships Major Open Llandudno ENG 2017-07-29
RcRownchangeKK*chgGame
 1836 1971 5.50 9 -0.49 20 -9.80 
  Price, Gwilym T 1776 ENG0.501-0.2520-5.00 
  Modi, Kishan J 1725 ENG1.0010.19203.80 
  Ratnesan, Ranesh 1845 ENG0.001-0.6720-13.40 
  Robertson, Jim 1633 SCO1.0010.12202.40 
  Somton, Anita 1705 ENG1.0010.18203.60 
  Miller, Dominic 2103 ENG0.5010.18203.60 
  Pollack, Oscar 1871 ENG1.0010.36207.20 
  Blake, J Morgan 1833 ENG0.501-0.1920-3.80 
  Sugden, John N 2037 ENG0.001-0.4120-8.20 

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)
 
 53rd Berks & Bucks Chess Congress Championship Maidenhead ENG 2017-08-26
RcRownchangeKK*chgGame
 1971 1954 1.00 5 -1.37 20 -27.40 
  Peters, Stephen G 2073 ENG0.001-0.3420-6.80 
  Villiers, Thomas 2122 ENG0.001-0.2820-5.60 
  Cole, James 1950 ENG0.001-0.5120-10.20 
  Akeya-Price, Robert A 1724 ENG0.001-0.7920-15.80 
  Nelson, Omowale A 1987 JAM1.0010.552011.00 

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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