Event: KO 2022-23

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Opponent Rating Result
Alexander Parker 1473 1 - 0
Nick Warren 1795 ½ - ½
Nick Warren 1795 ½ - ½
James C Mansson 2084 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1787 = (7147 + 400 * (1 - 1)) / 4)

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