Event: Lewisham Club Championship

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Opponent Rating Result
David Hamilton 1546 1 - 0
James R Barber 1312 1 - 0
James Tapp 1922 0 - 1
Tim Gluckman 1945 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1781 = (6725 + 400 * (2 - 1)) / 4)

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