Event: Division 4

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Opponent	Rating	Result
Roger Hardy	1786	½ - ½
Lloyd Beckford	1757	1 - 0
James Bartram	1558	0 - 1
Tom Jillians	1720	1 - 0
Jack Giltrap	1381	1 - 0
Pillay Shriya	1565	0 - 1
Kevin D Langmaid	1571	1 - 0
Mavin Kashyap	1240	1 - 0

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

1722 = (12578 + 400 * (5 - 2)) / 8)