Event: Norfolk County Chess Championships

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Opponent Rating Result
Mervyn J Hughes 1855 ½ - ½
Samuel Gaffney 1821 1 - 0
Robin Blackwell 1818 ½ - ½
Gerald Moore 2114 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2002 = (7608 + 400 * (1 - 0)) / 4)

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