Individual Calculations September 2011
 Brachten, Ron  Total change: -26.10  Rating chartPersonal card
 Science Park Amsterdam Chess Tournament - B Amsterdam NED 2011-07-09
RcRownchangeKK*chgGame
 1968 1934 0.50 3 -0.87 30 -26.10 
  Cheung, Jan 2024 NED0.001-0.3830-11.40 
  Avis, Fred 1995 NED0.001-0.4230-12.60 
  Schmit, Evert 1885 NED0.501-0.0730-2.10 

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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