Individual Calculations February 2023
 Willemsen, Lourens  Total change: 17.60  Rating chartPersonal card
 Tata Steel Tienkampen 2023 Wijk aan Zee NED 2023-01-20
RcRownchangeKK*chgGame
 1750 1755 4.50 8 0.44 40 17.60 
  Kortendijk, Albert 1800 NED1.0010.564022.40 
  Van De Griend, Johan 1760 NED0.001-0.4940-19.60 
  Loos, Jeroen 1712 NED0.001-0.5640-22.40 
  Mak, Nico 1770 NED1.0010.524020.80 
  Greven, Ron 1794 NED1.0010.554022.00 
  Regeling, Chris 1760 NED0.001-0.4940-19.60 
  De Ruijter, Sylvain 1741 NED1.0010.484019.20 
  Duivenvoorden, Ben 1659 NED0.501-0.1340-5.20 

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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