Event: Hillingdon Div 1

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Opponent Rating Result
Laith Hayali 1845 ½ - ½
Cherag Irani 1759 ½ - ½
Phil McKenna 1395 1 - 0
JJ Padam 1701 ½ - ½
Anthony Braine 1687 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1677 = (8387 + 400 * (1 - 1)) / 5)

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