Individual Calculations July 2022
 Sombetzki, Detlef  Total change: 7.80  Rating chartPersonal card
 27. Bad Bertricher Schachtage 2022 Seniorenturnier over 50 Bad Bertrich GER 2022-06-07
RcRownchangeKK*chgGame
 1689 1518 3.00 9 0.39 20 7.80 
  Harsch, Martin 1885 SUI0.001-0.1020-2.00 
  Meul, Willi 1749 GER0.5010.29205.80 
  Mentink, Toon 1751 NED0.001-0.2120-4.20 
  Lubberich, Alfred, Dr. 1767 GER0.5010.31206.20 
  Kalkmann, Hans 1832 GER0.001-0.1420-2.80 
  Walther, Renate 1209 GER1.0010.14202.80 
  Cordsen, Heinrich 1769 GER0.001-0.1920-3.80 
  Puetz, Peter 1640 GER0.5010.17203.40 
  Tanz, Manfred 1602 GER0.5010.12202.40 

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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