Event: Division 4 - Athenaeum Cup

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Opponent Rating Result
Roy Evans 0 ½ - ½
Andrew Nettleship 103 0 - 1
Michael W Simmons 78 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-73 = (181 + 400 * (0 - 1)) / 3)

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