Individual Calculations July 2023
 Pulley, Alvin J  Total change: 34.40  Rating chartPersonal card
 32nd annual Chicago Open - U2100 Section Wheeling, IL USA 2023-05-26
RcRownchangeKK*chgGame
 1696 1714 4.00 6 0.83 40 33.20 
  Zhang, Kylie 1834 USA1.0010.664026.40 
  Franco, Michael 1561 USA0.001-0.7040-28.00 
  Nudo, Zachary W 1645 USA1.0010.404016.00 
  Tabor, Kai 1926 USA0.001-0.2340-9.20 
  He, Justin Shandong 1600 USA1.0010.344013.60 
  Karthikeyan, Harishkumar 1611 USA1.0010.364014.40 

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)
 
 2023 National Open - Under 2100 Las Vegas, NV USA 2023-06-15
RcRownchangeKK*chgGame
 1644 1714 3.50 6 0.03 40 1.20 
  Zhang, Michelle 1443 USA0.501-0.3340-13.20 
  Dhingra, Sangeeta 1637 USA1.0010.394015.60 
  Chakraborty, Ritam 1330 USA0.501-0.4140-16.40 
  Stevens, Adam 1596 USA1.0010.344013.60 
  Taylor, Stewart Bradley 1881 USA0.5010.22408.80 
  Ramirez Jimenez, Javier 1976 MEX0.001-0.1840-7.20 

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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