Event: Division 2

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Opponent	Rating	Result
Jim A Arbuckle	1733	½ - ½
Michael Mason	0	0 - 1
Fred Collins	1500	½ - ½
Peter Biggs	1686	½ - ½
Ben Harte	1726	½ - ½
John A Figgins	1637	½ - ½
Matei Coseru	991	1 - 0
Vladimir Chtym	1513	1 - 0

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

1398 = (10786 + 400 * (2 - 1)) / 8)