Event: Lewisham Club Championship

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Opponent Rating Result
David C Helsby 1797 ½ - ½
Ian F Mills 1474 1 - 0
Tim Gluckman 1945 ½ - ½
Mehmet Ali 2058 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1919 = (7274 + 400 * (1 - 0)) / 4)

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