Event: Silver Rook

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Opponent Rating Result
Alan Hollaway 117 1 - 0
Mike Wilford 109 1 - 0
Robert Pells 0 ½ - ½
Jael De Sousa Muachikape 127 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

388 = (353 + 400 * (3 - 0)) / 4)

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