Individual Calculations April 2009
 Ogada-Osir, Ibrahim Okinyi  Total change: -6.00  Rating chartPersonal card
 Gibraltar Master 2009 Gibraltar ENG 2009-01-27
RcRownchangeKK*chgGame
 2137 2110 4.00 9 -0.24 25 -6.00 
  Brown, David 1932 ENG0.501-0.2325-5.75 
  White, Michael J R f2251 ENG1.0010.692517.25 
  Andersson, Ulf g2460 SWE0.001-0.1125-2.75 
  Dunn, Andrew c2216 ENG0.001-0.3625-9.00 
  Carlsen, Ellen Oen 1888 NOR0.001-0.7825-19.50 
  Escofet Llongueras, Joan 1889 ESP1.0010.22255.50 
  Helin, Mikael 1974 SWE1.0010.32258.00 
  Ripari, Marcelo f2313 ARG0.001-0.2425-6.00 
  Fruebing, Stefan f2307 GER0.5010.25256.25 

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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