Event: Robert Ward Trophy

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Opponent Rating Result
Neill Harvey-Smith 1699 ½ - ½
Neill Harvey-Smith 1699 ½ - ½
Tony Preece 1850 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1616 = (5248 + 400 * (0 - 1)) / 3)

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