Individual Calculations October 2019
 Jap Tjoen San, Linda  Total change: -9.80  Rating chartPersonal card
 Dutch Team Competition 2019-2020 Klasse 3E Round 1 various NED 2019-09-28
 2059 2050 0.00 1 -0.49 20 -9.80 
  Klop, Tjomme 2059 NED0.001-0.4920-9.80 

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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