Individual Calculations February 2023
 Koeweiden, Bart  Total change: 12.00  Rating chartPersonal card
 Tata Steel dagvierkampen 2023 Wijk aan Zee NED 2023-01-16
RcRownchangeKK*chgGame
 1726 1825 2.50 3 0.60 20 12.00 
  Meruma, Arie 1715 NED0.501-0.1520-3.00 
  Rutgers, Louis 1734 NED1.0010.38207.60 
  Alferink, Roel 1730 NED1.0010.37207.40 

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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