Event: Division 3

Opponent Rating Result
Jordan Marchant-Winsor 1660 ½ - ½
Robert Parsons 1740 1 - 0
Karina Kowalczyk 1535 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1912 = (4935 + 400 * (2 - 0)) / 3)

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