Event: Division 2 - Under 6800

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Opponent Rating Result
Ian Henry 1578 1 - 0
Charles Doidge 1579 0 - 1
Alan H Davies 1540 1 - 0
Arthur Doble 1431 0(def) - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1699 = (4697 + 400 * (2 - 1)) / 3)

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