Event: NSDCA Division 2

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Opponent	Rating	Result
Roger W Walker	1621	1 - 0
Nicholas PA Wright	1437	½ - ½
Sean Tavener	1760	½ - ½
Glen Clouds	1626	½ - ½
Glen Clouds	1733	0 - 1
Martin F Frisher	1787	0 - 1
Nigel Scott	1690	½ - ½
David M Rose	1543	1 - 0

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

1650 = (13197 + 400 * (2 - 2)) / 8)