Event: SCCU County Championship: u1850

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Opponent Rating Result
Clive Heidrich 1762 ½ - ½
Russell Campbell 1794 0 - 1
Davi Diniz Afonso 1746 0 - 1
John B Illingworth 1662 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1641 = (6964 + 400 * (1 - 2)) / 4)

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