Event: Wahltuch

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Opponent Rating Result
Marcus Fung 1713 ½ - ½
Joel Prittie 1490 1 - 0
Nathan P Butterworth 1887 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1830 = (5090 + 400 * (1 - 0)) / 3)

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