Event: Division 4 - Athenaeum Cup

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Opponent Rating Result
Vlad Shaposhnikov 142 ½ - ½
George D Boothman 109 ½ - ½
Dave Cook 107 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

253 = (358 + 400 * (1 - 0)) / 3)

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