Individual Calculations January 2020
 Soltani, Mohammad  Total change: -3.20  Rating chartPersonal card
 Berkeley Club Championship 2019 Berkeley, California USA 2019-10-18
RcRownchangeKK*chgGame
 1756 1520 2.00 4 1.07 20 21.40 
  Payne, William 1580 USA1.0010.582011.60 
  Trestor, David J 1654 USA0.001-0.3220-6.40 
  Maser, Thomas F 1868 USA1.0010.892017.80 
  Gaffagan, Steven 1920  * USA0.001-0.0820-1.60 
 * 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)
 
 2019 Class Warfare Championship - U1900 Santa Clara, California USA 2019-11-29
RcRownchangeKK*chgGame
 1419 1513 1.50 4 -0.99 20 -19.80 
  Liang, Ethan 1388 USA0.501-0.1720-3.40 
  Meiyappan, Kavya 1283 USA0.001-0.7920-15.80 
  Sane, Adway Gajanan 1544 USA1.0010.542010.80 
  Kou, Daniel 1461 USA0.001-0.5720-11.40 

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)
 
 2019 GM Igor Ivanov Weekender Berkeley, California USA 2019-12-06
RcRownchangeKK*chgGame
 1577 1513 1.00 3 -0.24 20 -4.80 
  Glasscoe, Alan 1536 USA1.0010.532010.60 
  Mishkin, Viktor 1639 USA0.001-0.3320-6.60 
  Guo, Andrew 1556 USA0.001-0.4420-8.80 

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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