Individual Calculations February 2013
 Cummings, David  Total change: -0.90  Rating chartPersonal card
 2013 Hart House Winter Open Toronto, Ontario CAN 2013-01-04
 2223 2327 3.00 5 -0.09 10 -0.90 
  Peng, Jackie wf1993 CAN1.0010.12101.20 
  Knox, Christopher 2065 CAN1.0010.18101.80 
  Sambuev, Bator g2510 CAN1.0010.74107.40 
  Samsonkin, Artiom m2397 CAN0.001-0.4010-4.00 
  Gusev, Nikita f2152 CAN0.001-0.7310-7.30 

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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