Event: MCA Division 3

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Opponent Rating Result
Peter Leonard 1454 0 - 1
William (Billy) Melia 1559 1 - 0
Fred Lang 1548 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1387 = (4561 + 400 * (1 - 2)) / 3)

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