Event: Summer Max 480 Division

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Opponent Rating Result
Steve Faye 87 0 - 1
John P Donovan 87 ½ - ½
Les Perry 73 1 - 0
John P Donovan 87 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

84 = (334 + 400 * (1 - 1)) / 4)

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