Event: Combined Banks and Insurance Chess League 2007-08

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Opponent	Rating	Result
Geoff W Naldrett	0	1 - 0
David A Tidmarsh	0	½ - ½
Andrew Medworth	0	0 - 1

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

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