Individual Calculations September 2009
 Morrow, Hans M  Total change: 13.50  Rating chartPersonal card
 110th Annual US Open Indianapolis, Indiana USA 2009-08-01
RcRownchangeKK*chgGame
 2151 1936 1.00 2 0.54 25 13.50 
  Yu, Corbin Zachary 2207 USA0.001-0.1725-4.25 
  Ellis, James S 2095 USA1.0010.712517.75 

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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