Event: Hammersmith

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Opponent Rating Result
Alexander Royce 1386 0 - 1
Azad Missakian 1079 0 - 1
Colette Cohen 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

688 = (2465 + 400 * (1 - 2)) / 3)

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