Event: Summer League Division 1

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Opponent Rating Result
Oskar A Hackner 215 ½ - ½
Andrew Butterworth 146 ½ - ½
Aram Ter-Gevorkian 181 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

47 = (542 + 400 * (0 - 1)) / 3)

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