Event: B&DCL Div 3

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Opponent Rating Result
Tim Joyce 1698 ½ - ½
Richard W Ursell 1788 ½ - ½
Stephen Bolton 1698 ½ - ½
Graham Hillman 1690 1 - 0
Paul Sandy 1623 ½ - ½
Tim Joyce 1698 ½ - ½
Robert Halse 1855 1 - 0
Stephen Bolton 1698 ½ - ½
John R Bowley 1630 1 - 0
Paul Sandy 1623 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1860 = (17001 + 400 * (4 - 0)) / 10)

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