Event: Combined Banks and Insurance Chess League 2010-11

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Opponent	Rating	Result
Paul Vanlint	0	1 - 0
Gerald F Parfett	0	½ - ½
Geoff W Naldrett	0	½ - ½

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

133 = (0 + 400 * (1 - 0)) / 3)