Individual Calculations January 2018
 Chong, Ning Christopher  Total change: -4.40  Rating chartPersonal card
 4th Johor International Chess Challenger Open 2017 Johor MAS 2017-12-11
RcRownchangeKK*chgGame
 1570 1218 0.00 1 -0.11 40 -4.40 
  Aritra, Ganguly 1570 IND0.001-0.1140-4.40 

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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