Event: Norfolk County Chess Championships

Opponent Rating Result
David J Payne 1809 ½ - ½
Michael J Gibbons 1931 ½ - ½
Nathan J Abbott 1891 0 - 1
Antony C Hall 1855 ½ - ½
Samuel Gaffney 1833 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1784 = (9319 + 400 * (0 - 1)) / 5)

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