Event: 4-Board Division 1

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Opponent	Rating	Result
Richard O Callis	139	0 - 1
Edward S Oxley	142	0 - 1
David E Lord	169	0 - 1
Phil Bawden	149	0 - 1
Stephen Crow	150	0 - 1
Michael A Pollard	129	0 - 1
Nick Whetton	113	1 - 0

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

-144 = (991 + 400 * (1 - 6)) / 7)