Individual Calculations February 2023
 Merriman, John  Total change: -14.60  Rating chartPersonal card
 London Christmas Chess Congress - Open London ENG 2022-12-28
RcRownchangeKK*chgGame
 2044 2314 4.50 6 -0.31 20 -6.20 
  Cox, Toby 1914  * ENG1.0010.08201.60 
  Thatte, Nishchal 1905 ENG1.0010.08201.60 
  Badacsonyi, Frankie 1983 ENG1.0010.12202.40 
  Russell, Christopher 2168 ENG1.0010.30206.00 
  Browning, Alex f2292 GER0.001-0.5320-10.60 
  Merriman, James 1999 ENG0.501-0.3620-7.20 
 * Rating difference of more than 400. Please read more at FIDE Handbook

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)
 
 2022/23 4NCL Division 2 Rounds 3-4 Daventry ENG 2023-01-14
RcRownchangeKK*chgGame
 2153 2314 1.00 2 -0.42 20 -8.40 
  Nicholas, Koichi B 2113 ENG0.001-0.7620-15.20 
  Mitchell, Martin 2193 SCO1.0010.34206.80 

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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