Event: Lewisham Club Championship

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Opponent Rating Result
Tim Gluckman 1945 ½ - ½
Andrew JW Dovey 1647 0 - 1
Gustavo Cilleruelo 1685 ½ - ½
David E Brown 1799 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1669 = (7076 + 400 * (0 - 1)) / 4)

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