Event: Online Championship 2020/2021

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Opponent Rating Result
Tim M Turner 1867 0 - 1
J Gerry Johnstone 1624 ½ - ½
Graham Lee 1613 ½ - ½
Douglas Vleeshhouwer 2105 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1602 = (7209 + 400 * (0 - 2)) / 4)

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