Individual Calculations February 2023
 Mittertreiner, Aad  Total change: 15.40  Rating chartPersonal card
 Tata Steel Tienkampen 2023 Wijk aan Zee NED 2023-01-20
RcRownchangeKK*chgGame
 1661 1682 5.00 8 0.77 20 15.40 
  Wolters, Dick 1634 NED0.501-0.0720-1.40 
  Eveleens, Ed 1645 NED0.001-0.5520-11.00 
  Brands, Joop 1614 NED1.0010.41208.20 
  Mollenkamp, Ron 1734 NED0.001-0.4320-8.60 
  Mihailescu, Lucian 1625 NED0.501-0.0820-1.60 
  Van Wijngaarden, Thijs 1679 NED1.0010.502010.00 
  Joliez, Didier 1686 FRA1.0010.512010.20 
  Witkamp, Theo 1671 NED1.0010.48209.60 

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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