Event: Division 3

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Opponent Rating Result
Michael Kowalczyk 1448 0 - 1
Bethany Irwin 0 1 - 0
Filipe Rinaldi 1215 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

754 = (2663 + 400 * (1 - 2)) / 3)

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