Individual Calculations September 2009
 Chang, Eddison, Dr.  Total change: -29.85  Rating chartPersonal card
 Trinidad and Tobago 3rd Preliminary National Championship Open 2009 San Fernando TRI 2009-07-04
RcRownchangeKK*chgGame
 2072 2047 2.50 5 0.18 15 2.70 
  Sears, Frank 1956 TRI0.501-0.1215-1.80 
  Pouchet, Michael f2073 TRI1.0010.54158.10 
  Joseph, Marcus 2158 TRI0.001-0.3515-5.25 
  Rosales, Guelmo 2035 TRI1.0010.48157.20 
  Merritt, Mario f2139 TRI0.001-0.3715-5.55 

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)
 
 Trinidad and Tobago 4th Preliminary National Championship Open 2009 Scarborough, Port of Spain TRI 2009-08-15
RcRownchangeKK*chgGame
 1943 2047 1.00 5 -2.17 15 -32.55 
  Joseph, Marcus 2158 TRI0.001-0.3515-5.25 
  Soondarsingh, Dev 1900 TRI0.001-0.7015-10.50 
  Lee, Hayden 1790 TRI0.001-0.8215-12.30 
  Sears, Frank 1956 TRI0.501-0.1215-1.80 
  Paul, Jayson 1913 TRI0.501-0.1815-2.70 

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)
 

 

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