Event: Combined Banks and Insurance Chess League 2007-08

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Opponent	Rating	Result
Alan E Hanreck	0	½ - ½
Alex Lewis	0	1 - 0
Jeremy A Leake	0	1 - 0
David Malcolm	0	1 - 0
Oliver Williams	0	½ - ½

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

240 = (0 + 400 * (3 - 0)) / 5)