Event: Rapid Swiss 2

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Opponent Rating Result
Judith Heffer 0 0 - 1
Robert L Jones 0 0 - 1
Jake Williamson 0 0 - 1
Mark Heffer 0 0 - 1
Peter Newton 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-400 = (0 + 400 * (0 - 5)) / 5)

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