Event: Combined Banks and Insurance Chess League 2007-08

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Opponent	Rating	Result
James H Aldred	0	½ - ½
Steven JF Walsh	0	½ - ½
James MG Toon	0	½ - ½
Julian T Ward	0	0 - 1
Brendan Keenan	0	0 - 1

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

-160 = (0 + 400 * (0 - 2)) / 5)