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Event: Online League Division 1 (Spring 2021)

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Opponent Rating Result
Ron Usharovsky 1975 ½ - ½
Calum Kinloch 1723 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2049 = (3698 + 400 * (1 - 0)) / 2)

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