Event: Norfolk Team Blitz-Challengers

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Opponent	Rating	Result
Eric Bradley	1302	0 - 1
David J Payne	1777	0 - 1
Peter Stone	1629	0 - 1
Richard Armitage	1342	0 - 1
Steve Sanders	1600	0 - 1
Simon Walklate	0	0 - 1
Biran S Shah	1736	0 - 1

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

941 = (9386 + 400 * (0 - 7)) / 7)