Individual Calculations June 2023
 Coathup, Roger H  Total change: -8.60  Rating chartPersonal card
 2022/23 4NCL Division 2 Rounds 9-11 Milton Keynes ENG 2023-04-29
RcRownchangeKK*chgGame
 2126 2087 1.00 3 -0.34 20 -6.80 
  Murphy, Hugh W 2100 ENG0.5010.02200.40 
  Carleton, John J 2160 ENG0.001-0.4020-8.00 
  Jones, Christopher M 2117 ENG0.5010.04200.80 

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)
 
 Durham County Chess Congress - Open Darlington ENG 2023-05-12
RcRownchangeKK*chgGame
 1956 2087 2.50 4 -0.09 20 -1.80 
  Gara, Kirill 1869 FID1.0010.22204.40 
  Blackford, Ross 1704 SCO0.501-0.4120-8.20 
  Shahbazi, Mahmoud 1989 ENG0.501-0.1320-2.60 
  Neat, Ken P 2262 ENG0.5010.23204.60 

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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