Event: SCCU County Championship: u2050

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Opponent	Rating	Result
Steven JL Rix	1988	0 - 1
Paul L Williamson	2020	½ - ½
Julien M Shepley	1964	1 - 0

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

1991 = (5972 + 400 * (1 - 1)) / 3)