Event: Division 1

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Opponent	Rating	Result
Richard M Cowan	174	½ - ½
Paul W Anderson	145	½ - ½
David Wm Smith	119	½ - ½
James M Carpenter	175	½ - ½
Kevin Plaxton	142	½ - ½
George A Darling	160	1 - 0
Paul M Barber	162	0 - 1

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

154 = (1077 + 400 * (1 - 1)) / 7)