Individual Calculations July 2023
 Raczek, Zbigniew  Total change: -10.60  Rating chartPersonal card
 Ogolnopolski Turniej Osob Niewidomych i Slabowidzacych o Puchar Podkarpacia 2023 Wladyslawowo POL 2023-06-15
RcRownchangeKK*chgGame
 1333 1119 0.50 4 -0.53 20 -10.60 
  Luc, Wojciech 1549 POL0.001-0.0720-1.40 
  Bosek, Grzegorz 1169 POL0.001-0.4320-8.60 
  Perszewska, Krystyna 1391 POL0.5010.33206.60 
  Gorak, Tomasz 1221 POL0.001-0.3620-7.20 

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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