Event: SCCU County Championship: u1850

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Opponent Rating Result
Peter L Childs 1791 0 - 1
Ian K Cross 1795 0 - 1
Colin M Newton 1721 ½ - ½
Martin E Newman 1658 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1441 = (6965 + 400 * (0 - 3)) / 4)

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