Individual Calculations January 2012
 Piket, Joop  Total change: -4.20  Rating chartPersonal card
 Dutch Team Competition - 2B - Round 2-4 Various NED 2011-10-29
RcRownchangeKK*chgGame
 2206 2125 0.50 2 -0.28 15 -4.20 
  Floor, Dirk 2214 NED0.001-0.3815-5.70 
  Jolles, Hajo f2197 NED0.5010.10151.50 

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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