Event: Combined Banks and Insurance Chess League 2011-12

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Opponent Rating Result
Terry C Skippen 0 ½ - ½
Hor Chan 0 0 - 1
Michael N Jones 0 ½ - ½
Mark Chamberlain 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

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

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