Event: Lewisham Club Championship

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Opponent Rating Result
David Hassine 1460 1 - 0
James Tapp 1922 0 - 1
Andrew D Craig 1806 ½ - ½
Andrew JW Dovey 1647 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1809 = (6835 + 400 * (2 - 1)) / 4)

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