Individual Calculations March 2020
 Richardson, Ryan  Total change: -45.80  Rating chartPersonal card
 Oregon Closed Championship 2020 - Championship Portland, Oregon USA 2020-02-08
RcRownchangeKK*chgGame
 2086 2023 1.50 9 -2.29 20 -45.80 
  Peng, Shunkai f2343 USA0.001-0.1320-2.60 
  Raptis, Nick f2204 USA0.001-0.2620-5.20 
  Cosner, Karl 1981 USA0.001-0.5620-11.20 
  Zavortink, Matt 2166 USA0.001-0.3120-6.20 
  Grabinsky, Joshua c2182 USA0.001-0.2920-5.80 
  Lebovitz, Andrew 2049 USA1.0010.542010.80 
  Haessler, Carl 2016 USA0.001-0.5120-10.20 
  Tang, Zoey 1807 USA0.001-0.7820-15.60 
  Bjorksten, Lennart 2028 USA0.5010.01200.20 

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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