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Event: The National

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Opponent Rating Result
Diego Fernando Franco Perez 1700 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1700 = (1700 + 400 * (0 - 0)) / 1)

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Opponent Rating Result
David Wright 1619 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1219 = (1619 + 400 * (0 - 1)) / 1)