Event: Haslemere Trophy

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Opponent Rating Result
Steve Harley 1789 0 - 1
Ray Tarling 1817 0 - 1
Steve Harley 1789 0 - 1
Ray Tarling 1817 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1403 = (7212 + 400 * (0 - 4)) / 4)

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