Event: Norfolk County Chess Championships

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Opponent Rating Result
Michael J Gibbons 1931 ½ - ½
David J Payne 1809 1 - 0
Mervyn J Hughes 1938 1 - 0
John Anderson 2199 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2169 = (7877 + 400 * (2 - 0)) / 4)

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