Event: Hillingdon Div 2

Opponent Rating Result
Naavya Parikh 1851 0 - 1
Surjit S Dhemrait 1603 ½ - ½
Peter R Lord 1668 1 - 0
Fabrizio Gemelli 0 1 - 0
Daniel Knight 1729 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1450 = (6851 + 400 * (2 - 1)) / 5)

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