Event: D&DCL Div 2

Opponent Rating Result
Ray J Forey 1964 ½ - ½
Anthony L Natt 1891 0 - 1
David Hatton 1763 1 - 0
Stephen G Wootton 1626 1 - 0
Dean M Hartley 1809 ½ - ½
Ray Sawyer 1698 0 - 1
David Williams 1840 1 - 0
Alan F Downham 1857 0 - 1
Ray Sawyer 1758 0 - 1
David Hatton 1804 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1801 = (18010 + 400 * (4 - 4)) / 10)

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