Event: SCCU County Championship: u1850

Opponent Rating Result
Mark Rivlin 1698 ½ - ½
Ian K Cross 1795 ½ - ½
Robert J Stebbings 1637 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1710 = (5130 + 400 * (0 - 0)) / 3)

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