Event: U1850

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Opponent	Rating	Result
Titas Vdovycia	1716	1 - 0
Neil Foxcroft	1525	1 - 0
Michael Carroll	1661	½ - ½

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

1901 = (4902 + 400 * (2 - 0)) / 3)