Event: Norfolk County Chess Championships

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Opponent Rating Result
Philip R Bonafont 2089 1 - 0
Antony C Hall 1958 ½ - ½
Jaden Jermy 2165 0 - 1
Samuel Gaffney 1870 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2021 = (8082 + 400 * (1 - 1)) / 4)

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