Event: Division 1

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Opponent Rating Result
Phil Ramsey 1807 0 - 1
Jon Woolf 1771 ½ - ½
Rick Purcell 1855 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1544 = (5433 + 400 * (0 - 2)) / 3)

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