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Event: National Challenge

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Opponent Rating Result
Jonny Kearney 0 0 - 1
Rachel Topping 0 1 - 0(def)
Rida Ruqayyah 12 1 - 0
Matthew Rowe 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-129 = (12 + 400 * (1 - 2)) / 3)

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Opponent Rating Result
Stephen Murdoch 101 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-299 = (101 + 400 * (0 - 1)) / 1)