Event: Dave Luckin Trophy

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Opponent	Rating	Result
Paul C Stokes	1902	0 - 1
John R McKenna	1697	1 - 0
David Jones	1780	0 - 1

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

1660 = (5379 + 400 * (1 - 2)) / 3)