Event: Hillingdon Div 1

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Opponent	Rating	Result
Raghu Kamath	1880	0 - 1
John Burke	1954	0 - 1
Laith Hayali	1833	½ - ½

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

1622 = (5667 + 400 * (0 - 2)) / 3)