Event: Holmes Chapel Individual Championship

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Opponent Rating Result
Ian Bates 1493 1 - 0
Malcolm A Roberts 1644 1 - 0
Michael L Hancock 2032 0 - 1
Paul G Clifford 1448 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1854 = (6617 + 400 * (3 - 1)) / 4)

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