Individual Calculations September 2009
 Kaufman, Lawrence  Total change: 1.00  Rating chartPersonal card
 2009 Chesapeake Open Baltimore, Maryland USA 2009-06-19
RcRownchangeKK*chgGame
 2384 2397 1.50 2 0.47 10 4.70 
  Adu, Oladapo Oluto m2294 NGR1.0010.36103.60 
  Smith, Bryan G m2474 USA0.5010.11101.10 

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)
 
 110th Annual US Open Indianapolis, Indiana USA 2009-08-01
RcRownchangeKK*chgGame
 2136 2400 4.50 6 -0.37 10 -3.70 
  Young, Steven D 2000  * USA1.0010.08100.80 
  Mills, James A 2152 USA1.0010.19101.90 
  Langer, Michael f2263 USA0.001-0.6810-6.80 
  Thieme, Steffen O 2069 GER1.0010.12101.20 
  Vilenchuk, Michael 2127 USA1.0010.17101.70 
  Karklins, Andrew f2205 USA0.501-0.2510-2.50 
 * Rating difference of more than 400. Please read more at FIDE Handbook

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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