Individual Calculations February 2013
 Carter, David E  Total change: -10.35  Rating chartPersonal card
 2013 Boston Chess Congress - Major Section Boston, Massachusetts USA 2013-01-11
RcRownchangeKK*chgGame
 2185 2101 1.00 3 -0.16 15 -2.40 
  Williams, Chris 2162 USA1.0010.58158.70 
  Krasik, Ilya 2187 USA0.001-0.3815-5.70 
  Wang, Qibiao 2206 CHN0.001-0.3615-5.40 

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)
 
 2013 Portsmouth Open Portsmouth, New Hampshire USA 2013-01-19
RcRownchangeKK*chgGame
 2109 2101 1.00 3 -0.53 15 -7.95 
  Gaspar, John 1939 USA0.001-0.7115-10.65 
  Elmore, John P 1953 USA1.0010.30154.50 
  Vigorito, David m2434 USA0.001-0.1215-1.80 

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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