Event: Norfolk County Chess Championships

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Opponent Rating Result
Jeff R Dawson 2004 0 - 1
Philip R Bonafont 2032 ½ - ½
Dave Dempster 1930 ½ - ½
Jim McAvoy 1849 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1954 = (7815 + 400 * (1 - 1)) / 4)

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