Individual Calculations April 2014
 Chumfwa, Stanley  Total change: -9.60  Rating chartPersonal card
 National Chess Championship 2014 Lusaka ZAM 2014-02-14
RcRownchangeKK*chgGame
 2180 2327 3.50 6 -0.64 15 -9.60 
  Munenga, Douglas f2157 ZAM0.501-0.2215-3.30 
  Chumfwa, Kelvin c2221 ZAM0.501-0.1415-2.10 
  Kaulule, Kela 2089 ZAM1.0010.20153.00 
  Mwali, Chitumbo m2247 ZAM0.501-0.1115-1.65 
  Phiri, Richmond f2100 ZAM0.501-0.2915-4.35 
  Kayonde, Andrew c2267 ZAM0.501-0.0815-1.20 

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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