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Event: Online League Division 1 (Spring 2021)

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Opponent Rating Result
Jonathan Hoong 1830 1 - 0
Miroslaw Walkusz 2235 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2233 = (4065 + 400 * (1 - 0)) / 2)

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