Event: London Banks Team Swiss 2006-07

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Opponent	Rating	Result
Keith Hallam	0	0 - 1
V Valchev	0	0 - 1
Chris Louth	0	0 - 1
D Bleakney	0	0 - 1
Keith Hallam	0	0 - 1

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

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