Event: 7400 max Rapid-play

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Opponent Rating Result
Muhammed Oguz Isik 1837 0 - 1
Muhammed Oguz Isik 1837 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1637 = (3674 + 400 * (0 - 1)) / 2)

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