Individual Calculations July 2013
 Petty, David A  Total change: 30.60  Rating chartPersonal card
 Farley Memorial League X Rochester, New York USA 2013-03-25
RcRownchangeKK*chgGame
 2016 2072 5.50 6 2.04 15 30.60 
  Nikolayev, Igor f2353 USA0.5010.34155.10 
  McBride, Kenneth L 1971 USA1.0010.36155.40 
  Rossi, Jimmy 1885 USA1.0010.26153.90 
  Badamo, Anthony 2013 USA1.0010.42156.30 
  Rofrano, Joshua 2040 USA1.0010.46156.90 
  Alexander, Michael 1836 USA1.0010.20153.00 

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)
 

 

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