Individual Calculations October 2013
 Yam, Alex  Total change: -0.90  Rating chartPersonal card
 2013 Battle of Alberta Red Deer, Alberta CAN 2013-09-21
RcRownchangeKK*chgGame
 2445 2279 0.50 2 -0.06 15 -0.90 
  Porper, Edward m2445 CAN0.5010.22153.30 
  Porper, Edward m2445 CAN0.001-0.2815-4.20 

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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