Event: SCL Div 4

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Opponent Rating Result
Sam J Murphy 0 0 - 1
Bob A Cleave 0 0 - 1
Jerry Ingamells 0 0 - 1
John R Webb 0 0 - 1
Alexander Cagnasso 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-400 = (0 + 400 * (0 - 5)) / 5)

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