Event: Norfolk County Chess Championships

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Opponent Rating Result
Philip R Bonafont 2107 ½ - ½
Paul P Smith 2058 1 - 0
Roy Hughes 2033 0 - 1
Benjamin PQ Collinson 1984 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1946 = (8182 + 400 * (1 - 2)) / 4)

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