Event: Knock-Out Cup

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Opponent Rating Result
Peter J McConnell 1563 0 - 1
Colin J Green 1968 ½ - ½
David Riley 1593 1 - 0
Mike J Donnelly 1930 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1664 = (7054 + 400 * (1 - 2)) / 4)

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