Event: D&DCL Div 2

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Opponent	Rating	Result
David Hatton	1553	1 - 0
Matthew Caswell	1628	0 - 1
George K Heath	1313	0 - 1
Brian Lever	1522	1 - 0
Peter M Collins	1676	½ - ½
Ray Sawyer	1603	1 - 0
Kevin J Gallagher	1675	½ - ½
George Burdell	1729	0 - 1

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

1587 = (12699 + 400 * (3 - 3)) / 8)