Event: Hillingdon Div 1

Opponent Rating Result
Andrew Harley 2139 ½ - ½
David J White 1831 1 - 0
Raghu Kamath 1869 ½ - ½
Robert S Eames 2178 0 - 1
David J White 1805 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2044 = (9822 + 400 * (2 - 1)) / 5)

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