Event: Hillingdon Div 1

Opponent Rating Result
William Phillips 1786 0 - 1
Andrew Harley 2172 0 - 1
Mark Winterbotham 1862 ½ - ½
Cherag Irani 1722 1 - 0
Steven F Coles 1980 0 - 1
JJ Padam 1736 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1676 = (11258 + 400 * (1 - 4)) / 6)

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