Individual Calculations February 2019
 Officier, Tom  Total change: -4.60  Rating chartPersonal card
 Tata Steel Chess Tournament 2018 - Weekendvierkampen Wijk aan Zee NED 2019-01-11
RcRownchangeKK*chgGame
 1922 1980 1.50 3 -0.23 20 -4.60 
  Van Lanen, Alex 1847 NED1.0010.32206.40 
  Balla, Tom 1999 NED0.001-0.4720-9.40 
  Gebhardt, Uwe 1919 GER0.501-0.0820-1.60 

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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