Event: SCCU County Championship: u1850

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Opponent	Rating	Result
Peter L Childs	1795	1 - 0
V Ray Harper	1769	1 - 0
Paul H Kenning	1800	0 - 1

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

1921 = (5364 + 400 * (2 - 1)) / 3)