Event: Division 1

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Opponent Rating Result
Michael A Naylor-Eade 1957 0 - 1
Richard Myers 1669 ½ - ½
D Philip Morgan 1753 1 - 0
William (snr) Atiomo 1698 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1669 = (7077 + 400 * (1 - 2)) / 4)

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