Event: Division Two

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Opponent Rating Result
Geoffrey C Wesson 1668 0 - 1
Stephen R Wilcox 1803 1 - 0
Robert Glass 1759 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1610 = (5230 + 400 * (1 - 2)) / 3)

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