Event: Division 1

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Opponent Rating Result
William J Moffatt 1677 1 - 0
William J Moffatt 1677 ½ - ½
Paul N Fearnhead 1665 0(def) - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1877 = (3354 + 400 * (1 - 0)) / 2)

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