Event: 2023 Club Knockout

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Opponent Rating Result
Sally Hunt 1299 1 - 0
Adrian Bond 1309 1 - 0
Tim F Woodward 1809 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1606 = (4417 + 400 * (2 - 1)) / 3)

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