Event: Division 1

Opponent Rating Result
Richard A Balatoni 1685 1 - 0
Peter D Lalic 2314 0 - 1
Meet Shah 1868 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1822 = (5867 + 400 * (1 - 2)) / 3)

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