Event: Norfolk Team Blitz-Championship

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Opponent	Rating	Result
Jaden Jermy	2101	0 - 1
David E Hall	1711	0 - 1
Graham K Blowers	1732	½ - ½
Paul P Smith	2081	0 - 1
Mark Lim	1893	0 - 1
Benjie Elston	1743	1 - 0
Jeff R Dawson	1893	1 - 0

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

1765 = (13154 + 400 * (2 - 4)) / 7)