Event: Combined Banks and Insurance Chess League 2007-08

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Opponent Rating Result
Brendan Keenan 0 ½ - ½
D Ian Calvert 0 1 - 0
Michael JM Rose 0 1 - 0
James H Aldred 0 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

200 = (0 + 400 * (2 - 0)) / 4)

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