Individual Calculations April 2009
 Romero, Steve  Total change: 11.50  Rating chartPersonal card
 39th Annual World Amateur Team & US Team East Parsippany, New Jersey USA 2009-02-14
RcRownchangeKK*chgGame
 2192 2012 1.00 2 0.46 25 11.50 
  Williams, Christopher 2256 USA1.0010.802520.00 
  Ng, Andrew 2127 USA0.001-0.3425-8.50 

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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