Individual Calculations November 2010
 Heywood, Bill  Total change: -7.75  Rating chartPersonal card
 59th Annual Oregon Open Gresham, Oregon USA 2010-09-04
RcRownchangeKK*chgGame
 2218 2171 1.00 3 -0.31 25 -7.75 
  Martin, Roger 2216 USA1.0010.562514.00 
  Haessler, Carl A 2172 USA0.001-0.5025-12.50 
  Roua, Radu 2265 ROU0.001-0.3725-9.25 

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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