Event: Division 1 - Davy Trophy

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Opponent	Rating	Result
Mark S Allison	184	½ - ½
Mike Alcock	164	0 - 1
Jim Burnett	192	1 - 0
Rob Woodford	185	1 - 0
Hubert Mossong	186	½ - ½
Khaled Muflehi	164	0 - 1
Carl Walker	168	1 - 0

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

235 = (1243 + 400 * (3 - 2)) / 7)