Event: Hammersmith

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Opponent Rating Result
Samuel Ewart 1054 0 - 1
Nyi Linn Khant 0 0 - 1
Aidan Dwyer 1377 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

677 = (2431 + 400 * (1 - 2)) / 3)

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