Event: Hillingdon Div 1

Opponent Rating Result
Mark Winterbotham 1854 ½ - ½
Jagdeep Dhemrait 1968 ½ - ½
Arthur Cann 1653 ½ - ½
Ian K Cross 1690 ½ - ½
Sujan Nargund 1624 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1758 = (8789 + 400 * (0 - 0)) / 5)

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