Event: Hillingdon Div 2

Opponent Rating Result
Alastair G Johnstone 1640 ½ - ½
Alex Lushpa 1581 ½ - ½
John Clenshaw 1735 0 - 1
Greg J Breed 1849 1 - 0
Greg J Breed 1844 ½ - ½
Mark Connor 1506 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1759 = (10155 + 400 * (2 - 1)) / 6)

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