Event: Max 480

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Opponent Rating Result
Robert Trevis 67 ½ - ½
Derek Green 131 0 - 1
John Gammon 60 1 - 0
Derek Green 131 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

97 = (389 + 400 * (1 - 1)) / 4)

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