Event: November/December rapidplay

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Opponent Rating Result
Lawrence Waller 335 1 - 0
Abhimanyu Janharlal 497 1 - 0
Abhimanyu Janharlal 497 1 - 0
Abhimanyu Janharlal 505 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

859 = (1834 + 400 * (4 - 0)) / 4)

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