Event: London Banks Team Swiss 2009-10

Opponent Rating Result
John Friend 0 ½ - ½
Kevin P Millward 0 0 - 1
Colin AH Russ 0 0 - 1
David Chan 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-300 = (0 + 400 * (0 - 3)) / 4)

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