Event: Hillingdon Div 2

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Opponent	Rating	Result
Shreya Wani	1380	0 - 1
Gesneria-Codruta Cepoi	1378	0 - 1

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

979 = (2758 + 400 * (0 - 2)) / 2)