Individual Calculations February 2018
 Van Der Maat, Niek  Total change: 1.40  Rating chartPersonal card
 Tata Steel Tienkampen 2018 Wijk aan Zee NED 2018-01-19
RcRownchangeKK*chgGame
 1986 1981 4.50 9 0.07 20 1.40 
  Markus, John Raymond 2038 NED1.0010.582011.60 
  Kunst, Andre 1975 NED0.501-0.0120-0.20 
  Bermon, Henk 1882 NED1.0010.36207.20 
  Pover, Piet 1979 NED0.5010.00200.00 
  Koelmans, Jan Willem 1949 NED0.501-0.0420-0.80 
  Van Amerongen-Jansen, Peggy 2060 NED0.001-0.3920-7.80 
  Pauw, Martijn 2004 NED0.001-0.4720-9.40 
  Schelvis, Richard 2050 NED0.5010.10202.00 
  Pham, Khoi 1936 NED0.501-0.0620-1.20 

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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