Event: SCCU County Championship: u2050

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Opponent	Rating	Result
Anthony P Cullen	1900	½ - ½
Peter F Anderson	1874	½ - ½
Robbie Staff	1897	0 - 1

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

1757 = (5671 + 400 * (0 - 1)) / 3)