Event: Open Section

Opponent Rating Result
Sandra G Blackburn 1549 ½ - ½
Stephen Brown 1494 1 - 0
Alan M Paling 1915 0(def) - 1
Jon EW Blackburn 1698 0(def) - 1
Dylan E Cooper 1535 0(def) - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1722 = (3043 + 400 * (1 - 0)) / 2)

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