Event: Norfolk County Chess Championships

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Opponent Rating Result
Paul P Smith 1997 0 - 1
David E Hall 1929 0 - 1
Jim McAvoy 1849 1 - 0
Dave Dempster 1930 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1826 = (7705 + 400 * (1 - 2)) / 4)

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