Individual Calculations October 2021
 Howes, David J  Total change: -22.80  Rating chartPersonal card
 Coulsdon Chess Dicky White S1 SEP 2021 London ENG 2021-09-06
RcRownchangeKK*chgGame
 1410 1301 0.50 3 -0.56 20 -11.20 
  John, Maxamillian 1494 ENG0.001-0.2520-5.00 
  Venkatesh, Anuj 1350 ENG0.5010.07201.40 
  Whelan, Joseph 1387 ENG0.001-0.3820-7.60 

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)
 
 Coulsdon Chess Daytime Chess Autumn 2021 S1 SEP 2021 London ENG 2021-09-15
RcRownchangeKK*chgGame
 1387 1301 0.00 2 -0.78 20 -15.60 
  John, Maxamillian 1494 ENG0.001-0.2520-5.00 
  Gillespie, Frank 1280 ENG0.001-0.5320-10.60 

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)
 
 Coulsdon Chess Standardplay Congress - Minor London ENG 2021-09-18
RcRownchangeKK*chgGame
 1056 1301 1.00 1 0.20 20 4.00 
  Wimble, Garry 1056 ENG1.0010.20204.00 

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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