Event: HDCA Summer League Division 2

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Opponent Rating Result
N Charles Clayton 97 ½ - ½
Mike A Butt 125 1 - 0
Peter T Perkins 125 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

249 = (347 + 400 * (1 - 0)) / 3)

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