Event: WMA Autumn League Division 2

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Opponent	Rating	Result
John P Wrench	2016	½ - ½
James E O'Dell	1600	½ - ½
James Munns	1620	0 - 1
AS Whitten	1600	1 - 0
Michael WA Hoare	1707	1 - 0
John P Wrench	2016	0 - 1
James E O'Dell	1600	0 - 1
James Munns	1620	0 - 1
AS Whitten	1600	½ - ½
Michael WA Hoare	1707	1 - 0

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

1669 = (17086 + 400 * (3 - 4)) / 10)