Event: Division 2 East

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Opponent Rating Result
Chris S Purry 147 ½ - ½
John A Fisher 120 0 - 1
Joseph D Clapp 122 ½ - ½
Kevin Paine 110 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

125 = (499 + 400 * (1 - 1)) / 4)

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