Event: Durham League Division B

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Opponent	Rating	Result
Bryan J Bainbridge	1551	0 - 1
Alexander Belay	0	1 - 0
Stephen J Hall	1813	0 - 1
Stephen Carter	1572	0 - 1
Stephen J Hall	1813	0 - 1
Graham R Marshall	1415	½ - ½
Peter Townson	1524	1 - 0
Daniel Williams	1605	0 - 1

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

1262 = (11293 + 400 * (2 - 5)) / 8)