Event: Norfolk County Chess Championships

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Opponent Rating Result
Jaden Jermy 2070 0 - 1
Steve J Pullinger 1988 0 - 1
Philip R Bonafont 2032 ½ - ½
David E Hall 1929 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1705 = (8019 + 400 * (0 - 3)) / 4)

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