Event: SCCU County Championship: u1850

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Opponent Rating Result
Christopher Willoughby 1780 ½ - ½
Steve Madden 1842 0 - 1
Andrew Boughen 1823 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1548 = (5445 + 400 * (0 - 2)) / 3)

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