Event: 4-Board Division 2

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Opponent	Rating	Result
Richard O Callis	144	0 - 1
Chris J Matthews	144	0 - 1
Malcolm Ogglesby	104	0 - 1
Robin A Edwards	114	0 - 1
R Malcolm Hara	124	1 - 0
Stephen Greep	130	0 - 1
Richard Atkinson	114	1 - 0

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

-47 = (874 + 400 * (2 - 5)) / 7)