Event: Preston Club Championship

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Opponent	Rating	Result
D Brett Lund	207	0 - 1
William J Moffatt	122	1 - 0
Malcolm R Peacock	184	0 - 1
Chris Soames	100	1 - 0
Alan Pidcock	136

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

153 = (613 + 400 * (2 - 2)) / 4)