Individual Calculations April 2019
 Laureano, Dereck  Total change: 7.20  Rating chartPersonal card
 Cary Chess Center Open Durham, North Carolina USA 2019-03-22
 1910 1864 1.50 3 0.18 40 7.20 
  Xi, Kevin 1763 USA1.0010.364014.40 
  Launiau, Severin 2036 FRA0.5010.23409.20 
  Yan, Benjamin 1930 USA0.001-0.4140-16.40 

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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