Individual Calculations February 2023
 Barbier, Astrid  Total change: -5.40  Rating chartPersonal card
 19e Bois-Colombes Chess Master - Open A BOIS COLOMBES FRA 2022-12-26
RcRownchangeKK*chgGame
 2081 1947 2.50 7 0.24 20 4.80 
  Houhou, Alexandre 2177 FRA0.001-0.2120-4.20 
  Vinodhkumar, Balaguru 2088 IND0.001-0.3120-6.20 
  Karas, Eugenia 2004 ENG0.5010.08201.60 
  Rousselet, Christophe 2018 FRA0.5010.10202.00 
  Arquie, Alexis 2044 FRA1.0010.632012.60 
  Boumrar, Ayrad 2143 FRA0.5010.25205.00 
  David, Bogdan-Emanuel c2096 ROU0.001-0.3020-6.00 

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)
 
 Tata Steel weekendvierkampen 2023 Wijk aan Zee NED 2023-01-13
RcRownchangeKK*chgGame
 1948 1950 0.50 2 -0.51 20 -10.20 
  Verheul, Job 1909 NED0.001-0.5620-11.20 
  Van Zutphen, Frank 1986 NED0.5010.05201.00 

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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