Event: Max 400

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Opponent Rating Result
Michele J Clack 106 1 - 0
Steve Berry 107 1 - 0
Michele J Clack 106 1 - 0
Steve Berry 107 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

507 = (426 + 400 * (4 - 0)) / 4)

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