Individual Calculations July 2013
 Chen, Michael L  Total change: -8.70  Rating chartPersonal card
 2013 Michigan Bottom Half Class Championship Comstock Park, Michigan USA 2013-06-22
RcRownchangeKK*chgGame
 2120 2031 0.50 2 -0.29 30 -8.70 
  Wijetunge, Ivan 1956 USA0.001-0.6030-18.00 
  Sprenkle, David C f2283 USA0.5010.31309.30 

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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