Event: Div 2 - Weston Trophy

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Opponent	Rating	Result
Seth Woozeer	1773	0 - 1
Abdul Qahar Abdul Quadri	0	0 - 1
Peter Locking	1597	½ - ½
Peter Locking	1597	1 - 0
Barry Williams	1650	1 - 0

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

1323 = (6617 + 400 * (2 - 2)) / 5)