Rapid: Individual Calculations January 2020
 Ibrahim, Atia Ahmed  Total change: 28.20  Rating chartPersonal card
 Black Horse 5 Alexandria EGY 2019-12-12
RcRownchangeKK*chgGame
 1761 1641 3.50 6 1.41 20 28.20 
  Abdel Hameid, Zaki 1829 EGY0.5010.24204.80 
  Fared, Karim 1890 EGY0.001-0.1920-3.80 
  Mowafi, Osama Mohamed 1445 EGY1.0010.25205.00 
  Mahmoud, Hassan 1708 EGY1.0010.592011.80 
  Farouk, Mohamed 1912 EGY0.001-0.1720-3.40 
  Abo Elftoh, Hany 1779 EGY1.0010.692013.80 

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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