Individual Calculations April 2009
 Williams, Samuel G  Total change: -7.05  Rating chartPersonal card
 4NCL part 2 Various ENG 2008-10-04
RcRownchangeKK*chgGame
 2423 2217 0.00 2 -0.47 15 -7.05 
  Cherniaev, Alexander g2438 RUS0.001-0.2215-3.30 
  Mah, Karl C C m2408 ENG0.001-0.2515-3.75 

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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