Individual Calculations January 2009
 Tamarkin, Lawrence  Total change: -52.80  Rating chartPersonal card
 11th Queens Club Futurity Jamaica, New York USA 2008-07-11
RcRownchangeKK*chgGame
 2030 2150 4.00 10 -2.60 15 -39.00 
  Frumkin, Edward A 2049 USA0.001-0.6415-9.60 
  Muwwakkil, Mulazim 1966 USA0.001-0.7415-11.10 
  Ryba, Andrew A 2014 USA0.501-0.1815-2.70 
  Ryba, Nicholas A 2014 USA0.501-0.1815-2.70 
  Lawson, Brian 2108 USA1.0010.44156.60 
  Frumkin, Edward A 2049 USA0.501-0.1415-2.10 
  Muwwakkil, Mulazim 1966 USA0.501-0.2415-3.60 
  Ryba, Andrew A 2014 USA0.501-0.1815-2.70 
  Ryba, Nicholas A 2014 USA0.501-0.1815-2.70 
  Lawson, Brian 2108 USA0.001-0.5615-8.40 

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)
 
 Edward Lasker Memorial and 92nd Annual Marshall Chess Club Championship New York, New York USA 2008-10-17
RcRownchangeKK*chgGame
 2032 2150 1.50 3 -0.47 15 -7.05 
  Kennedy, Shernaz wm2030 USA0.501-0.1615-2.40 
  Hellenschmidt, Andrew 2053 USA0.501-0.1315-1.95 
  Ryba, Andrew 2014 USA0.501-0.1815-2.70 

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)
 
 What-A-Turkey Open New York, NY USA 2008-11-22
RcRownchangeKK*chgGame
 2185 2150 0.00 1 -0.45 15 -6.75 
  Privman, Boris f2185 USA0.001-0.4515-6.75 

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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