Event: Norfolk County Chess Championships

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Opponent Rating Result
Jim McAvoy 1849 1 - 0
Martin G Walker 2187 0 - 1
Nathan J Abbott 1891 1 - 0
Stephen LA Orton 2159 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2222 = (8086 + 400 * (3 - 1)) / 4)

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