Individual Calculations December 2019
 Hengelbrock, Joachim  Total change: -1.80  Rating chartPersonal card
 Oberliga NRW 2019/2020 November 2019 various GER 2019-11-10
 2238 2305 0.50 1 -0.09 20 -1.80 
  Baltic, Fatih f2238 GER0.501-0.0920-1.80 

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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