Individual Calculations January 2019
 Kalkowski, Igor  Total change: 90.40  Rating chartPersonal card
 10th CSC London Chess Classic: FIDE Open London ENG 2018-12-09
RcRownchangeKK*chgGame
 1980 1716 4.00 9 2.26 40 90.40 
  Russell, Christopher 2116  * ENG0.001-0.0840-3.20 
  De Coverly, Roger D 1951 ENG1.0010.794031.60 
  Sedykh, Mikhail 2116  * ENG0.001-0.0840-3.20 
  Flear, Christine wm2055 FRA0.001-0.1240-4.80 
  Spina, Simonpietro 1881 ITA1.0010.724028.80 
  Kromhout, Ewan 2019 RSA0.001-0.1440-5.60 
  Wei, Naomi 1812 ENG1.0010.634025.20 
  Millward, Kevin P 2012 ENG0.001-0.1540-6.00 
  Vachtfeidl, Petr 1861 CZE1.0010.694027.60 
 * Rating difference of more than 400. Please read more at FIDE Handbook

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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