Event: NSDCA Division 2

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Opponent Rating Result
Lukas Hancock 1668 0 - 1
George Bulbeck 1581 ½ - ½
George Bulbeck 1581 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1610 = (4830 + 400 * (1 - 1)) / 3)

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