Event: 4-Board Division 2

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Opponent Rating Result
Michael A Pollard 1650 0 - 1
Richard O Callis 1627 1 - 0
Robert Docwra 1637 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1505 = (4914 + 400 * (1 - 2)) / 3)

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