Event: 6600 max

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Opponent	Rating	Result
Gavin Cartwright	1833	1 - 0
Mike Warden	1593	½ - ½
Mike J Hollier	1735	0 - 1
Karl L Chan	1521	1 - 0
Arnold Peace	1653	0 - 1
Ray Hall	1660	0 - 1
Gavin Cartwright	1833	0 - 1
Mike Warden	1593	½ - ½
Mike J Hollier	1735	0 - 1
Karl L Chan	1521	1 - 0
Arnold Peace	1653	1 - 0
Ray Hall	1660	0 - 1

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

1599 = (19990 + 400 * (4 - 6)) / 12)