Individual Calculations February 2023
 Iwu, Dr. Okechukwu  Total change: 22.80  Rating chartPersonal card
 2023 Winter Open Roseville, Minnesota USA 2023-01-21
RcRownchangeKK*chgGame
 1909 2042 4.50 5 1.14 20 22.80 
  Voje, Daniel W 1788 USA1.0010.19203.80 
  Garrett, Daniel Za 1855 USA1.0010.26205.20 
  Cavanah, Troy 1956 USA1.0010.38207.60 
  Weatherspoon, Kyler 1981 USA1.0010.42208.40 
  Matus, Nastassja A wf1964 USA0.501-0.1120-2.20 

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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