Individual Calculations May 2011
 Ponelis, Albert A.  Total change: 13.75  Rating chartPersonal card
 Capablanca Open Pretoria RSA 2011-03-19
RcRownchangeKK*chgGame
 2188 1972 1.50 4 0.55 25 13.75 
  Nelson, William Jh. 2083 RSA0.5010.15253.75 
  Mbedza, Richard 2122 MAW1.0010.702517.50 
  Ovcina, Denis 2226 RSA0.001-0.1925-4.75 
  Van Der Nat, Nicholas P. f2319 RSA0.001-0.1125-2.75 

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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