Event: Division 2

Opponent Rating Result
Robert R Sanders 1890 ½ - ½
Simon Wilks 1915 ½ - ½
Judith Heffer 1712 1 - 0
Simon Webber 1709 ½ - ½
David E Brown 1844 ½ - ½
Robert R Sanders 1896 ½ - ½
Simon Wilks 1967 0 - 1
John A Feavyour 1869 1 - 0
Simon Webber 1699 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1922 = (16501 + 400 * (3 - 1)) / 9)

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