Event: 4-Board Division 2

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Opponent Rating Result
Nick Colley 78 0 - 1
Dave M Cooper 105 0 - 1
Nick Colley 78 0 - 1
Colin W Field 87 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-213 = (348 + 400 * (0 - 3)) / 4)

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