Event: B&DCL Div 3

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Opponent Rating Result
Richard Ormesher 1700 0 - 1
Andrew M Alderton 1595 ½ - ½
Robert Davenport 1632 1 - 0
Daniel Miles 1733 1 - 0
Ellis Fretwell 1660 1 - 0
Roger D Howell 1449 1 - 0
Joseph Ballard 1500 1 - 0
Ellis Fretwell 1660 0 - 1
Paul T Errington 1596 0 - 1
Ron Salinger 1427 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1715 = (15952 + 400 * (6 - 3)) / 10)

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