Event: Combined Banks and Insurance Chess League 2011-12

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Opponent	Rating	Result
Ray P Hamilton	0	1 - 0
Hassan Atteeque	0	1 - 0
Mark Chamberlain	0	0 - 1
Alan Sheppard	0	0 - 1

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

0 = (0 + 400 * (2 - 2)) / 4)