Event: Grand Prix

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Opponent Rating Result
Hugo Bradshaw 0 0 - 1
Sean Campbell 0 1 - 0
Stephen T Welch 0 1 - 0
Gregory Konyakhin Borrelly 1287 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

422 = (1287 + 400 * (2 - 1)) / 4)

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