Event: SCCU County Championship: u2050

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Opponent	Rating	Result
David E Clear	1958	0 - 1
Ian N Heppell	1967	0 - 1
Paul L Williamson	1974	0 - 1

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

1566 = (5899 + 400 * (0 - 3)) / 3)