Event: London Banks Team Swiss 2008-09

Opponent Rating Result
David A Tidmarsh 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

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

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Opponent Rating Result
Matthew J Harborne 0 0 - 1
Ian N Heppell 0 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-200 = (0 + 400 * (0 - 1)) / 2)