Individual Calculations January 2012
 Chiang, Michael  Total change: 7.65  Rating chartPersonal card
 42nd Annual National Chess Congress Philadelphia, Pennsylvania USA 2011-11-25
RcRownchangeKK*chgGame
 2248 2165 2.50 5 0.51 15 7.65 
  Helfst, Matt D 1942 USA1.0010.22153.30 
  Kekelidze, Mikheil g2443 GEO0.001-0.1715-2.55 
  Pattard, Thomas 2142 GER1.0010.47157.05 
  Vitoux, Colomban m2415 FRA0.5010.31154.65 
  Shen, Victor C f2300 USA0.001-0.3215-4.80 

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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