Event: 4-Board Division 2

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Opponent	Rating	Result
Michael A Pollard	1690	½ - ½
William I Wright	1540	1 - 0
Andrew D Bettley	1855	0 - 1
Gabriel Wood	1600	0 - 1
R Malcolm Hara	1608	0 - 1
Philip A Wood	1533	1 - 0
Nick Colley	1413	1 - 0
Olegs Dukalevs	1728	0(def) - 1

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

1606 = (11239 + 400 * (3 - 3)) / 7)