Event: Division 2

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Opponent	Rating	Result
Keith S Jones	1840	½ - ½
Alexandr Pereslavtsev	1200	0 - 1
Leslie J Sargent	1330	0 - 1
Malcolm K Crane	1488	1 - 0
John A Figgins	1683	0 - 1
Russell Fisher	1420	0 - 1
Jeffrey Page	1630	1 - 0

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

1399 = (10591 + 400 * (2 - 4)) / 7)