Event: Division 1 - Davy Trophy

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Opponent	Rating	Result
Jonathan A Tait	195	½ - ½
Peter Ackley	191	½ - ½
Rob Woodford	177	½ - ½
Richard J Webster	173	1 - 0
Tom Leah	181	1 - 0
Samuel A Milson	199	0 - 1
Khaled Muflehi	173	½ - ½

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

241 = (1289 + 400 * (2 - 1)) / 7)