Event: Steele Cup

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Opponent Rating Result
Paul Worledge 1815 0 - 1
Samuel Marsden 2039 0 - 1
Bernie Kooiman 2055 ½ - ½
Harry J Sharples 1722 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1808 = (7631 + 400 * (1 - 2)) / 4)

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