Event: Norfolk County Chess Championships

Opponent Rating Result
Jim McAvoy 1833 1 - 0
Trevor J Ansell 1892 ½ - ½
Vivash Samarakoon 2087 0 - 1
Stephen LA Orton 2144 ½ - ½
Mervyn J Hughes 1860 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1883 = (9816 + 400 * (1 - 2)) / 5)

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