Event: Robert Ward Trophy

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Opponent Rating Result
Chris M Cox 1593 ½ - ½
Chris M Cox 1593 1 - 0
Peter J R Oliver 1645 1 - 0
David Gardiner 1885 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1779 = (6716 + 400 * (2 - 1)) / 4)

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