Event: Summer DEK Rapid (9|2)

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Opponent	Rating	Result
Chris Perkins	1637	0 - 1
Richie Allen	1321	1 - 0
Edward Hackford	1538	1 - 0
Alan F Page	1787	1 - 0
Chris Perkins	1637	1 - 0
Michael J Gibbons	1825	0 - 1

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

1758 = (9745 + 400 * (4 - 2)) / 6)