Event: NCCA Williamson Plate

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Opponent Rating Result
Rupert E Guinness 1618 0 - 1
Daniel R Hedges 1830 1 - 0
Ken B McEwan 2115 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1721 = (5563 + 400 * (1 - 2)) / 3)

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