Event: R Division

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Opponent Rating Result
Mohamed Gouda 1399 0 - 1
Jian Guan 1300 0 - 1
Mohamed Gouda 1399 0 - 1
Jian Guan 1300 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1050 = (5398 + 400 * (0 - 3)) / 4)

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