Individual Calculations September 2017
 Cresswell, Mike J  Total change: 2.40  Rating chartPersonal card
 104th British Championships Over 65 Llandudno ENG 2017-07-30
RcRownchangeKK*chgGame
 1920 1698 1.50 6 0.16 20 3.20 
  Bryant, Richard Be 1976 ENG0.001-0.1720-3.40 
  Lawson, Maurice E 1947 ENG0.5010.31206.20 
  Donaghay, Richard H 1856 ENG0.5010.21204.20 
  Collins, Peter M 1954 ENG0.5010.31206.20 
  Cooper, John G 1928 ENG0.001-0.2120-4.20 
  Goodwin, Ed H 1856 ENG0.001-0.2920-5.80 

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)
 
 104th British Championships Under 1900 Llandudno ENG 2017-07-31
RcRownchangeKK*chgGame
 1688 1698 1.50 3 -0.04 20 -0.80 
  Patrick, David A 1879 ENG0.5010.24204.80 
  Horlock, Peter J 1622 ENG0.501-0.1020-2.00 
  Gunn, Michael J 1563 ENG0.501-0.1820-3.60 

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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