Event: SCCU County Championship: u2050

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Opponent	Rating	Result
Brendan Keenan	1987	1 - 0
Steven JL Rix	2019	½ - ½
Anthony S Collins	1967	1 - 0

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

2258 = (5973 + 400 * (2 - 0)) / 3)