Individual Calculations September 2009
 Moheby, Mohamed  Total change: -16.00  Rating chartPersonal card
 Al Saleh 8th International Open Sanaa YEM 2009-07-01
RcRownchangeKK*chgGame
 1994 2049 0.50 2 -0.64 25 -16.00 
  Fayez, Ahmed 1850 UAE0.001-0.7625-19.00 
  Nawas, Abdul Rahman 2138 YEM0.5010.12253.00 

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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