Event: Hillingdon Div 2

Opponent Rating Result
Matthew Georgiou 1741 0 - 1
Phil McKenna 1420 1 - 0
Asoke K Nandi 1535 0 - 1
Phil McKenna 1385 0 - 1
Phil S Humphry 1273 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1391 = (7354 + 400 * (2 - 3)) / 5)

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