Individual Calculations May 2017
 Halfmann, Peter  Total change: 13.60  Rating chartPersonal card
 Oster-Open 2017 der Stadtsparkasse Oberhausen Oberhausen GER 2017-04-13
RcRownchangeKK*chgGame
 1927 1770 2.50 6 0.68 20 13.60 
  Naundorf, Maik 2154 GER0.001-0.0920-1.80 
  Rolle, Harald 1400 GER1.0010.10202.00 
  Ophuels, Jan 2029 GER0.001-0.1820-3.60 
  Osbild, Reiner 1997 GER0.5010.29205.80 
  Hermanowski, Mark 1969 GER1.0010.762015.20 
  Arndt, Olaf 2012 GER0.001-0.2020-4.00 

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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