Event: 7400-max Rapid-play

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Opponent Rating Result
Jon Turner 1790 1 - 0
David Smith 1667 0 - 1
Jon Turner 1790 0 - 1
David Smith 1667 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1529 = (6914 + 400 * (1 - 3)) / 4)

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