Individual Calculations January 2018
 Collins, Christian  Total change: -18.20  Rating chartPersonal card
 2017 RA December Open Ottawa CAN 2017-12-08
RcRownchangeKK*chgGame
 1873 1964 1.50 4 -0.91 20 -18.20 
  Yang, Fan 1948 CAN0.001-0.5220-10.40 
  Fei, David 1636 CAN1.0010.13202.60 
  Gordon, David c2216 CAN0.001-0.1920-3.80 
  Xu, Daniel 1690 CAN0.501-0.3320-6.60 

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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