Event: Division 1

Opponent Rating Result
Diana M Serbanescu 2051 0 - 1
Paul C Stokes 1816 ½ - ½
Jeff A Goldberg 2043 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1837 = (5910 + 400 * (0 - 1)) / 3)

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