Event: Hillingdon Div 2

Opponent Rating Result
John Clenshaw 1710 1 - 0
Peter D Walters 1958 0 - 1
Peter D Walters 1984 0 - 1
Geoff Richards 1392 1 - 0
Mark Connor 1492 1 - 0
Subas Subbaraj 1518 1 - 0
Phil S Humphry 1433 0 - 1
Laith Hayali 1763 0 - 1
Ian K Cross 1724 ½ - ½
Jim I Wrigglesworth 1446 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1682 = (16420 + 400 * (5 - 4)) / 10)

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