Event: 6-Board Division 1

Opponent Rating Result
John G Cooper 2200 1 - 0
Andrei Ciuravin 2184 0 - 1
Derek A Sheppard 1720 1 - 0
Mark I Collinson 1961 0 - 1
Graham Chesters 2013 0 - 1
Douglas Vleeshhouwer 2018 0 - 1
Kamila Hryshchenko 2236 0 - 1
Joe Varley 2120 ½ - ½
Derek A Sheppard 1720 1 - 0
Mark I Collinson 1961 0 - 1
Graham Chesters 2013 0 - 1
Douglas Vleeshhouwer 2018 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1914 = (24164 + 400 * (4 - 7)) / 12)

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