Individual Calculations May 2022
 McDonnell, James J  Total change: -4.20  Rating chartPersonal card
 2nd 4NCL Easter Congress Major Daventry ENG 2022-04-15
RcRownchangeKK*chgGame
 1725 1756 3.00 5 0.35 20 7.00 
  Murphy, Ross 1637 ENG1.0010.34206.80 
  Kay, Lee P 1951 ENG0.5010.25205.00 
  Obi, Okwose Marc 1782 ENG0.001-0.4620-9.20 
  Basson, Heinrich 1823 RSA0.5010.09201.80 
  Zhao, George 1430 ENG1.0010.13202.60 

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)
 
 Central London Chess Congress 2022 Major London ENG 2022-04-22
RcRownchangeKK*chgGame
 1735 1756 0.50 2 -0.56 20 -11.20 
  Llewellyn, Julian D 1668 ENG0.001-0.6220-12.40 
  Jacob, Sydney J 1801 ENG0.5010.06201.20 

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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