Individual Calculations January 2009
 Tuhrim, Richard  Total change: 8.25  Rating chartPersonal card
 Edward Lasker Memorial and 92nd Annual Marshall Chess Club Championship New York, New York USA 2008-10-17
RcRownchangeKK*chgGame
 2144 2020 3.00 7 0.55 15 8.25 
  Figler, Ilye f2322 USA0.5010.35155.25 
  Naranja, Renato C m2274 PHI0.001-0.1915-2.85 
  Sturt, Raven M 2055 USA0.5010.05150.75 
  Farber, Nelson M 2011 USA1.0010.49157.35 
  Pressman, Leif 2055 USA0.5010.05150.75 
  Margulis, Yevgeni 2274 USA0.001-0.1915-2.85 
  Ryba, Nicholas A 2014 USA0.501-0.0115-0.15 

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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