Event: Hillingdon Div X

Opponent Rating Result
Gautam Sriram 1293 ½ - ½
Harry Chan 0 1 - 0
Finian Pearce 934 1 - 0
Mohammad Mustafa Sherzad 992 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1105 = (3219 + 400 * (3 - 0)) / 4)

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