Event: Division Three

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Opponent Rating Result
David JR Walker 87 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

487 = (87 + 400 * (1 - 0)) / 1)

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Opponent Rating Result
Andrew Hayler 161 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-239 = (161 + 400 * (0 - 1)) / 1)