Individual Calculations September 2021
 Martin-Sommerfeldt, Luis  Total change: 8.80  Rating chartPersonal card
 Oberliga Nord-Nord 2019/2020 August 2021 various GER 2021-08-08
RcRownchangeKK*chgGame
 2177 2010 1.00 2 0.44 20 8.80 
  Frohberg, Marco 2208 GER0.5010.26205.20 
  Dietz, Juergen f2146 GER0.5010.18203.60 

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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