Event: Norfolk County Chess Championships

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Opponent Rating Result
Steve N Moore 1851 1 - 0
Jeff R Dawson 1919 1 - 0
Martin G Walker 2206 0 - 1
John F Lambert 1770 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2137 = (7746 + 400 * (3 - 1)) / 4)

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