Event: Highgate Qualifier

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Opponent	Rating	Result
Dami Afolabi	0	1 - 0
Kate Driscoll	77	0 - 1
Avril Chloe Hsu	103	0 - 1

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

-73 = (180 + 400 * (1 - 2)) / 3)