Event: Haslemere Trophy

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Opponent Rating Result
Dennis Parkinson 1323 1 - 0
W Gareth Ward 1383 1 - 0
Dennis Parkinson 1323 1 - 0
W Gareth Ward 1383 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1753 = (5412 + 400 * (4 - 0)) / 4)

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