Event: MCA Division 3

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Opponent	Rating	Result
Peter Mellor	1634	1 - 0
John J Grady	1613	½ - ½
Mark S Wadsworth	1690	½ - ½
Raymond Weedall	1638	1 - 0
Ben Gannon	1426	0 - 1
Steve Winstanley	1526	½ - ½
Bart McHugh	1614	½ - ½
David Li	0	1 - 0

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

1493 = (11141 + 400 * (3 - 1)) / 8)