Individual Calculations September 2009
 Wang, Kevin  Total change: -26.75  Rating chartPersonal card
 2009 Chesapeake Open Baltimore, Maryland USA 2009-06-19
RcRownchangeKK*chgGame
 2192 2245 0.00 1 -0.57 25 -14.25 
  Kahn, Aaron E 2192 USA0.001-0.5725-14.25 

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)
 
 37th Annual World Open - Under 2400 Section Philadelphia, Pennsylvania USA 2009-06-29
RcRownchangeKK*chgGame
 2192 2245 3.50 7 -0.50 25 -12.50 
  Parry, Matt J 2229 USA0.501-0.0225-0.50 
  Kahn, Aaron E 2192 USA0.501-0.0725-1.75 
  Hilton, Jonathan L 2220 USA0.001-0.5325-13.25 
  Murthy, Pappu 2095 USA0.501-0.2025-5.00 
  Zimmer, Ralph P f2261 USA0.5010.02250.50 
  Treger, Yefim 2185 USA1.0010.422510.50 
  Erdei, Andras A 2159 HUN0.501-0.1225-3.00 

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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