Individual Calculations July 2021
 Billey, David  Total change: -16.60  Rating chartPersonal card
 Open de Bischwiller 2021 Tournoi B (-1600) BISCHWILLER FRA 2021-06-26
RcRownchangeKK*chgGame
 1115 1438 3.50 5 -0.83 20 -16.60 
  Devitt, Adrien 1069 LUX0.001-0.9020-18.00 
  Jabri, Anwar 1044 FRA1.0010.08201.60 
  Dufraisse, Alexandre 1139 FRA1.0010.15203.00 
  Buettner, Anton 1101 GER1.0010.12202.40 
  Marzolf, Samuel 1220 FRA0.501-0.2820-5.60 

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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