Individual Calculations May 2015
 Bartell, Thomas  Total change: -18.90  Rating chartPersonal card
 9th Annual Philadelphia Open Philadelphia, Pennsylvania USA 2015-04-01
RcRownchangeKK*chgGame
 2113 2350 0.50 3 -1.89 10 -18.90 
  Gorti, Akshita wf2134 USA0.501-0.2810-2.80 
  Zhang, Yuanchen f2142 CAN0.001-0.7710-7.70 
  Tanenbaum, Zachary 2064 USA0.001-0.8410-8.40 

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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