Individual Calculations August 2017
 Tian, Shi Yuan  Total change: 191.60  Rating chartPersonal card
 Panamerican Youth Championship 2017 Girls U-12 San Jose CRC 2017-07-01
RcRownchangeKK*chgGame
 1550 1405 5.00 8 2.47 40 98.80 
  Figueroa Bernal, Julia Dennis wc1660 CHI1.0010.814032.40 
  Nguyen, Anh Nhu wc1494 USA0.5010.12404.80 
  Martinez Zambrano, Karina Paola 1462 ECU1.0010.584023.20 
  Miyasaka, Julia K 1599 USA0.5010.254010.00 
  Castano, Saray 1569 COL1.0010.724028.80 
  Kastanieda, Alla 1426 PER0.5010.03401.20 
  Matute Escobar, Roxanny wf1710 VEN0.5010.364014.40 
  Yellamraju, Ambica wc1478 USA0.001-0.4040-16.00 

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)
 
 2017 North American Youth Chess Championship - U16 Girls Morristown, New Jersey USA 2017-07-12
RcRownchangeKK*chgGame
 1710 1405 3.50 7 2.32 40 92.80 
  Davis, Katherine S 1805  * USA0.5010.424016.80 
  Vittal, Sanjana wf1805  * USA1.0010.924036.80 
  Lopez Sanchez, Anastacia Antonia wc1635 MEX0.001-0.2140-8.40 
  Tao, Ellen 1389 CAN0.501-0.0240-0.80 
  Liu, Kimberly 1728 USA0.5010.374014.80 
  Morris-Suzuki, Sophie 1805  * USA1.0010.924036.80 
  Deng, Queena 1805  * USA0.001-0.0840-3.20 
 * Rating difference of more than 400. Please read more at FIDE Handbook

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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