Event: Hillingdon Div 1

Opponent Rating Result
Thomas Villiers 2301 ½ - ½
Andrew Harley 2125 1 - 0
Steven F Coles 2018 0 - 1
Colin Hughes 1783 1 - 0
Jonathan PJ White 1970 0 - 1
Frank Zurstiege 1763 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2060 = (11960 + 400 * (3 - 2)) / 6)

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