Individual Calculations February 2023
 Staal, Ronald  Total change: 7.60  Rating chartPersonal card
 Tata Steel Tienkampen 2023 Wijk aan Zee NED 2023-01-20
RcRownchangeKK*chgGame
 1739 1767 4.50 8 0.19 40 7.60 
  Van Westerop, Sebastiaan 1815 NED0.001-0.4340-17.20 
  Van De Mark, Arie 1723 NED0.001-0.5640-22.40 
  Tamminga, Meile 1834 NED1.0010.594023.60 
  Wiemerink, Hans 1703 NED0.001-0.5940-23.60 
  Van Den Bos, Raymond 1750 NED1.0010.484019.20 
  De Vreeze, Frans 1673 NED1.0010.374014.80 
  De Witte, Wiebe 1733 NED0.501-0.0540-2.00 
  Faverey, Eddy 1678 NED1.0010.384015.20 

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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