Event: Pre-Season Swiss

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Opponent Rating Result
William G Armstrong 1708 0 - 1
Caroline L Mountford 1606 0 - 1
Alan M Willett 800 1 - 0
Isabelle M Rose 1260 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1144 = (5374 + 400 * (1 - 3)) / 4)

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