Individual Calculations January 2009
 Bath, John  Total change: -10.25  Rating chartPersonal card
 17th Annual Kings Island Open Mason, Ohio USA 2008-11-14
RcRownchangeKK*chgGame
 2234 2196 0.50 2 -0.41 25 -10.25 
  Smith, Bryan G m2406 USA0.001-0.2325-5.75 
  Markovits, Alex 2062 USA0.501-0.1825-4.50 

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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