Event: SCCU County Championship: U1850

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Opponent	Rating	Result
Jay Sharman	1654	½ - ½
Mike H Wood	1704	½ - ½
David Helps	1697	½ - ½

performance = (sum(opponents ratings) + 400(wins-losses)) / games

1685 = (5055 + 400 * (0 - 0)) / 3)