Event: Division Four

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Opponent Rating Result
David Smith 145 0(def) - 1
Mike Nevin 110 0 - 1
Stephen R Wilcox 148 0 - 1
Jim Barrett 135 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-2 = (393 + 400 * (1 - 2)) / 3)

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