Event: SCCU County Championship: U1850

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Opponent	Rating	Result
Robert G Thompson	1702	1 - 0
David J Gilbert	1612	½ - ½
Mukasa (Fred) Kaddu	1660	½ - ½
Ken R Chamberlain	1660	1 - 0
Zebedee Jones	1638	½ - ½
David Smith	1637	1 - 0

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

1852 = (9909 + 400 * (3 - 0)) / 6)