Individual Calculations February 2019
 Happel, Henk  Total change: -19.70  Rating chartPersonal card
 Tata Steel Chess Tournament 2018 - Tienkampen Wijk aan Zee NED 2019-01-18
RcRownchangeKK*chgGame
 1957 2047 3.00 8 -1.97 10 -19.70 
  Heijboer, Pieter 2051 NED0.5010.01100.10 
  Van Nieuwenhuizen, Hans 1878 NED0.001-0.7210-7.20 
  Seeleman, Jan 1958 NED0.001-0.6210-6.20 
  Van Westerop, Sebastiaan 1927 NED1.0010.34103.40 
  Vanduyfhuys, Daria wc1915 BEL0.001-0.6810-6.80 
  Verhoef, Jaap 1933 NED0.501-0.1610-1.60 
  Breedveld, Andre 2007 NED1.0010.44104.40 
  Huijzer, Joop 1990 NED0.001-0.5810-5.80 

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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