Individual Calculations February 2023
 Manuchehri, Alireza  Total change: -2.60  Rating chartPersonal card
 London Christmas Chess Congress - Open London ENG 2022-12-28
RcRownchangeKK*chgGame
 1889 1785 1.50 5 -0.43 20 -8.60 
  Russell, Christopher 2168 ENG0.001-0.0920-1.80 
  Chakanyuka, Charles 1948 ZIM0.001-0.2820-5.60 
  Berkley, Stephen W 1612 ENG1.0010.27205.40 
  Sagyaman, Francis William 2033 PHI0.5010.31206.20 
  Pranava, Ravikumar 1682 IND0.001-0.6420-12.80 

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)
 
 Ealing FIDE Congress - January U1900 London ENG 2023-01-28
RcRownchangeKK*chgGame
 1674 1785 3.50 5 0.30 20 6.00 
  Slonczuk, Pawel 1502 ENG1.0010.16203.20 
  Bryant, Harry 1621 ENG1.0010.28205.60 
  Vyas, Alisha 1634 ENG1.0010.30206.00 
  Obi, Okwose Marc 1742 ENG0.501-0.0620-1.20 
  Simon, Marek 1871 POL0.001-0.3820-7.60 

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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