Event: Combined Banks and Insurance Chess League 2004-05

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Opponent Rating Result
Geoff W Naldrett 0 ½ - ½
Richard J Walsh 0 ½ - ½
Ray P Hamilton 0 ½ - ½
Jonathan P Marrow 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-100 = (0 + 400 * (0 - 1)) / 4)

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