Event: NCCA Williamson Cup

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Opponent Rating Result
Robin Blackwell 1780 0 - 1
Stephen Livermore 1677 ½ - ½
Paul P Smith 2039 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1699 = (5496 + 400 * (0 - 1)) / 3)

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