Event: Millar Cup

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Opponent	Rating	Result
Robert Collopy	156	0 - 1
David Rogers	125	0 - 1
David Rogers	134	0 - 1
Ray Rennells	75	1 - 0
Jeff A Green	150	½ - ½
Peter LT Blundell	120	½ - ½
David Erwee	96	1 - 0

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

65 = (856 + 400 * (2 - 3)) / 7)