Individual Calculations January 2020
 Abdel Hameid, Zaki  Total change: -28.40  Rating chartPersonal card
 Alexandria Open 2019 (less than 2000) Alexandria EGY 2019-12-21
RcRownchangeKK*chgGame
 1790 1586 0.00 3 -0.71 40 -28.40 
  Osama Ramzy, Ramy 1741 EGY0.001-0.2940-11.60 
  Elfaham, Mahmoud 1798 EGY0.001-0.2340-9.20 
  Zaky, Mohamed 1832 EGY0.001-0.1940-7.60 

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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