Event: Hillingdon Div 1

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Opponent	Rating	Result
Laith Hayali	1804	0 - 1
Daniel Knight	1733	1 - 0
Eugene Gregorio	1726	1 - 0

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

1888 = (5263 + 400 * (2 - 1)) / 3)