Event: SCCU County Championship: u2050

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Opponent Rating Result
Alastair Armstrong 1885 ½ - ½
Richard C Thursby 1750 ½ - ½
Geoffrey L Bishop 1696 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1644 = (5331 + 400 * (0 - 1)) / 3)

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