Event: Norfolk County Chess Championships

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Opponent Rating Result
Jaden Jermy 2165 1 - 0
Benjamin PQ Collinson 1980 ½ - ½
Antony C Hall 1958 ½ - ½
Darrell N Pigott 1938 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2110 = (8041 + 400 * (1 - 0)) / 4)

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