Event: Division 1

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Opponent Rating Result
Dave G Pearse 1900 0 - 1
Kerry M Chilvers 1904 ½ - ½
Z Zia Mohammed Quader 1974 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1659 = (5778 + 400 * (0 - 2)) / 3)

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