Event: LCA Division 2 North

Opponent Rating Result
Herman FF Kok 150 0 - 1
Robert J Arthurton 121 1 - 0
Andrew T Watson 104 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-8 = (375 + 400 * (1 - 2)) / 3)

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