Event: Brewood Chess Circle Club Championship

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Opponent Rating Result
John Sewell 1185 ½ - ½
Paul Wright 1895 0 - 1
David Blower 1557 1 - 0
John Sewell 1411 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1412 = (6048 + 400 * (1 - 2)) / 4)

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