Individual Calculations September 2017
 Sulman, Robert M  Total change: -5.40  Rating chartPersonal card
 16th Annual Manhattan Open New York, New York USA 2017-08-18
RcRownchangeKK*chgGame
 2295 2209 0.50 2 -0.27 20 -5.40 
  Wang, Wesley c2247 USA0.5010.05201.00 
  Griffith, Kyron W f2343 USA0.001-0.3220-6.40 

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)
 

 

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