Event: NSDCA Division 2

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Opponent	Rating	Result
Nigel Scott	1500	½ - ½
Nicholas PA Wright	1471	½ - ½
George Bulbeck	1599	1 - 0
Sandra G Blackburn	1611	0 - 1
Stanislaw Wojtas	1809	½ - ½
John Hicks	1608	1 - 0
David I Hulme	1750	0 - 1
Julian N Hawthorne	1682	0 - 1
Jon EW Blackburn	1661	1 - 0
Evan Clark	1707	1 - 0

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

1680 = (16398 + 400 * (4 - 3)) / 10)