Event: Max 400

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Opponent Rating Result
Simon A Killarney 110 0 - 1
Robert Trevis 67 1 - 0
Simon A Killarney 110 0 - 1
Robert Trevis 67 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

89 = (354 + 400 * (2 - 2)) / 4)

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