Individual Calculations December 2017
 Abrahamyan, Tatev  Total change: -13.80  Rating chartPersonal card
 53rd Annual American Open Costa Mesa, California USA 2017-11-23
 2164 2346 5.00 8 -0.69 20 -13.80 
  Pan, Christopher 2041 USA0.501-0.3620-7.20 
  Eswaran, Ashritha wm2016 USA0.501-0.3820-7.60 
  Shlyakhtenko, Robert 2005 USA0.001-0.8820-17.60 
  Weeramantry, Sunil f2066 SRI1.0010.16203.20 
  Zaloznyy, Mike 2094 USA1.0010.19203.80 
  Yanayt, Eugene f2164 USA1.0010.26205.20 
  Hevia Alejano, Carlos Antonio g2500 CUB0.5010.21204.20 
  Vazquez, Guillermo m2427 PAR0.5010.11202.20 

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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