Event: WMA Summer League Division 2

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Opponent	Rating	Result
James E O'Dell	70	1 - 0
John P Wrench	70	0 - 1
Anthony J Green	173	½ - ½
Nicholas Fallowfield	168	1 - 0
Arnold G Kirkland	123	1 - 0
Ahmed Abdalkreem	77	1 - 0
James E O'Dell	70	1 - 0
John P Wrench	70	½ - ½
Anthony J Green	173	0 - 1
Nicholas Fallowfield	168	0 - 1
Arnold G Kirkland	123	1 - 0
Ahmed Abdalkreem	77	1 - 0

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

247 = (1362 + 400 * (7 - 3)) / 12)