Individual Calculations August 2019
 Bonnell, Leo  Total change: -22.20  Rating chartPersonal card
 Westford July Open Westford, Massachusetts USA 2019-07-13
 1791 1845 0.00 2 -1.11 20 -22.20 
  Sage, J Timothy 2011 USA0.001-0.2820-5.60 
  Pashkov, Peter 1570 USA0.001-0.8320-16.60 

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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