Event: LCA Division 2 North

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Opponent Rating Result
Joanne Hutchinson 147 0 - 1
Andrew T Watson 104 1 - 0
William Orr 114 0 - 1
Peter G Sherlock 112 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-81 = (477 + 400 * (1 - 3)) / 4)

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