Event: Rockhammer Cup

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Opponent Rating Result
Nicholas Fookes 1437 0 - 1
Nicholas Fookes 1437 0 - 1
Ali Hamdan 1332 0 - 1
Ali Hamdan 1332 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

985 = (5538 + 400 * (0 - 4)) / 4)

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