Event: D&DCL Div 1

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Opponent	Rating	Result
Alan F Downham	1910	½ - ½
Andrew Townsend	1794	1 - 0
Andrew Robins	1750	½ - ½
John Potter	2109	½ - ½
David Latham	2107	1 - 0
Andrew Stevens	1949	½ - ½
Alex Webster	1880	0 - 1
John Molyneux	2114	1 - 0
David Latham	2107	½ - ½

performance = (sum(opponents ratings) + 400(wins-losses)) / games

2058 = (17720 + 400 * (3 - 1)) / 9)