Event: John Robinson Trophy

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Opponent Rating Result
Steve Walpole 1803 0 - 1
Antonio Mura 1751 0 - 1
Nicholas J Caldwell 1775 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1643 = (5329 + 400 * (1 - 2)) / 3)

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