Event: Division 2

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Opponent	Rating	Result
David O Vaughan	1825	½ - ½
Martin J White	1908	0 - 1
Jerry Humphreys	2027	½ - ½
David Painter-Kooiman	1940	½ - ½
Matthew Dishman	1968	0 - 1
Rob Hearne	1937	½ - ½
Colin J Davis	2071	0 - 1

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

1782 = (13676 + 400 * (0 - 3)) / 7)