Event: Rapidplay - Under 7000

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Opponent Rating Result
Andrew S Kinder 1818 1 - 0
Steven J Levy 2050 1 - 0
Andrew S Kinder 1818 0 - 1
Steven J Levy 2050 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1934 = (7736 + 400 * (2 - 2)) / 4)

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