Event: Belper Club Championship

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Opponent	Rating	Result
Martin Cobham	0	0 - 1
Dean M Hartley	0	½ - ½
Roger Moors	0	½ - ½
Andy Townsend	0	0 - 1
Kenelm Acons	0
Faith Hill	0	0 - 1

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

-240 = (0 + 400 * (0 - 3)) / 5)