Event: Rapidplay - Under 7000

Opponent Rating Result
David J Archer 1773 0 - 1
David J Archer 1773 0 - 1
Catherine Black 1711 1 - 0
Andrew S Kinder 1818 1 - 0
Catherine Black 1711 1 - 0
Andrew S Kinder 1818 0 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1837 = (8786 + 400 * (3 - 2)) / 5)

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