Individual Calculations November 2022
 Stoneman, Ian D  Total change: 13.40  Rating chartPersonal card
 Coulsdon Chess Dicky White - October London ENG 2022-10-03
RcRownchangeKK*chgGame
 1428 1342 1.50 2 0.67 20 13.40 
  Mahadevan, Rohit 1204 ENG1.0010.31206.20 
  Williams, Michael D 1651 ENG0.5010.36207.20 

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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