Event: Norfolk County Chess Championships

Opponent Rating Result
Adrian G Elwin 1994 0 - 1
Mark Lim 1918 ½ - ½
Benjamin PQ Collinson 2072 0 - 1
Samuel Gaffney 1833 0 - 1
Antony C Hall 1855 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1614 = (9672 + 400 * (0 - 4)) / 5)

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