Event: MCA Division 2

Opponent Rating Result
Ron Harrison 1869 1 - 0
E Dave Williams 2056 0 - 1
AM (Tony) McNamara 1782 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1769 = (5707 + 400 * (1 - 2)) / 3)

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