Event: Hillingdon Div 1

Opponent Rating Result
David J White 1777 0 - 1
Mark Winterbotham 1876 0 - 1
Jagdeep Dhemrait 1924 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1459 = (5577 + 400 * (0 - 3)) / 3)

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